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LeetSpace

LeetSpace serves as a dedicated workspace and archive for my LeetCode submissions.

Problems

Problem Difficulty Solution
1. Two Sum Easy C C++
2. Add Two Numbers Medium C++
3. Longest Substring Without Repeating Characters Medium C C++
4. Median of Two Sorted Arrays Hard C C++
5. Longest Palindromic Substring Medium C C++
6. Zigzag Conversion Medium C C++
7. Reverse Integer Medium C C++
8. String to Integer (atoi) Medium C C++
9. Palindrome Number Easy C C++
10. Regular Expression Matching Hard C C++
11. Container With Most Water Medium C++
12. Integer to Roman Medium C C++
13. Roman to Integer Easy C C++
14. Longest Common Prefix Easy C C++
15. 3Sum Medium C++
16. 3Sum Closest Medium C C++
17. Letter Combinations of a Phone Number Medium C++
18. 4Sum Medium C C++
19. Remove Nth Node From End of List Medium C++
20. Valid Parentheses Easy C C++
21. Merge Two Sorted Lists Easy C++
22. Generate Parentheses Medium C C++
23. Merge k Sorted Lists Hard C++
24. Swap Nodes in Pairs Medium C++
25. Reverse Nodes in k-Group Hard C++
26. Remove Duplicates from Sorted Array Easy C++
27. Remove Element Easy C++
28. Find the Index of the First Occurrence in a String Easy C C++
29. Divide Two Integers Medium C C++
30. Substring with Concatenation of All Words Hard C++
31. Next Permutation Medium C++
32. Longest Valid Parentheses Hard C C++
33. Search in Rotated Sorted Array Medium C++
34. Find First and Last Position of Element in Sorted Array Medium C++
35. Search Insert Position Easy C++
36. Valid Sudoku Medium C C++
37. Sudoku Solver Hard C++
38. Count and Say Medium C C++
39. Combination Sum Medium C++
40. Combination Sum II Medium C C++
41. First Missing Positive Hard C C++
42. Trapping Rain Water Hard C C++
43. Multiply Strings Medium C C++
45. Jump Game II Medium C C++
46. Permutations Medium C C++
47. Permutations II Medium C C++
48. Rotate Image Medium C++
49. Group Anagrams Medium C++
50. Pow(x, n) Medium C C++
51. N-Queens Hard C++
52. N-Queens II Hard C C++
53. Maximum Subarray Medium C C++
54. Spiral Matrix Medium C C++
55. Jump Game Medium C C++
56. Merge Intervals Medium C C++
57. Insert Interval Medium C C++
58. Length of Last Word Easy C C++
59. Spiral Matrix II Medium C C++
60. Permutation Sequence Hard C C++
61. Rotate List Medium C++
62. Unique Paths Medium C C++
63. Unique Paths II Medium C C++
64. Minimum Path Sum Medium C C++
65. Valid Number Hard C C++
66. Plus One Easy C++
67. Add Binary Easy C C++
68. Text Justification Hard C C++
69. Sqrt(x) Easy C C++
70. Climbing Stairs Easy C C++
71. Simplify Path Medium C C++
73. Set Matrix Zeroes Medium C++
74. Search a 2D Matrix Medium C C++
75. Sort Colors Medium C++
77. Combinations Medium C C++
78. Subsets Medium C++
79. Word Search Medium C C++
80. Remove Duplicates from Sorted Array II Medium C++
81. Search in Rotated Sorted Array II Medium C C++
82. Remove Duplicates from Sorted List II Medium C++
83. Remove Duplicates from Sorted List Easy C++
84. Largest Rectangle in Histogram Hard C C++
86. Partition List Medium C++
87. Scramble String Hard C C++
88. Merge Sorted Array Easy C++
89. Gray Code Medium C C++
90. Subsets II Medium C C++
91. Decode Ways Medium C C++
92. Reverse Linked List II Medium C++
93. Restore IP Addresses Medium C C++
94. Binary Tree Inorder Traversal Easy C++
97. Interleaving String Medium C C++
98. Validate Binary Search Tree Medium C++
100. Same Tree Easy C++
101. Symmetric Tree Easy C++
102. Binary Tree Level Order Traversal Medium C++
104. Maximum Depth of Binary Tree Easy C++
112. Path Sum Easy C++
113. Path Sum II Medium C++
114. Flatten Binary Tree to Linked List Medium C++
115. Distinct Subsequences Hard C C++
118. Pascal's Triangle Easy C C++
119. Pascal's Triangle II Easy C C++
120. Triangle Medium C C++
121. Best Time to Buy and Sell Stock Easy C C++
122. Best Time to Buy and Sell Stock II Medium C C++
123. Best Time to Buy and Sell Stock III Hard C C++
125. Valid Palindrome Easy C C++
128. Longest Consecutive Sequence Medium C C++
129. Sum Root to Leaf Numbers Medium C++
130. Surrounded Regions Medium C++
131. Palindrome Partitioning Medium C C++
134. Gas Station Medium C C++
135. Candy Hard C C++
136. Single Number Easy C C++
137. Single Number II Medium C C++
140. Word Break II Hard C++
141. Linked List Cycle Easy C++
142. Linked List Cycle II Medium C++
143. Reorder List Medium C++
144. Binary Tree Preorder Traversal Easy C++
145. Binary Tree Postorder Traversal Easy C++
148. Sort List Medium C++
149. Max Points on a Line Hard C++
150. Evaluate Reverse Polish Notation Medium C C++
151. Reverse Words in a String Medium C C++
152. Maximum Product Subarray Medium C C++
153. Find Minimum in Rotated Sorted Array Medium C C++
164. Maximum Gap Medium C C++
165. Compare Version Numbers Medium C C++
166. Fraction to Recurring Decimal Medium C++
168. Excel Sheet Column Title Easy C C++
169. Majority Element Easy C C++
173. Binary Search Tree Iterator Medium C++
179. Largest Number Medium C C++
190. Reverse Bits Easy C C++
191. Number of 1 Bits Easy C C++
198. House Robber Medium C C++
200. Number of Islands Medium C C++
201. Bitwise AND of Numbers Range Medium C C++
202. Happy Number Easy C++
203. Remove Linked List Elements Easy C++
204. Count Primes Medium C C++
205. Isomorphic Strings Easy C C++
206. Reverse Linked List Easy C++
213. House Robber II Medium C C++
214. Shortest Palindrome Hard C++
216. Combination Sum III Medium C++
217. Contains Duplicate Easy C C++
219. Contains Duplicate II Easy C++
224. Basic Calculator Hard C C++
226. Invert Binary Tree Easy C++
228. Summary Ranges Easy C C++
229. Majority Element II Medium C C++
230. Kth Smallest Element in a BST Medium C++
231. Power of Two Easy C C++
232. Implement Queue using Stacks Easy C++
234. Palindrome Linked List Easy C++
237. Delete Node in a Linked List Medium C++
238. Product of Array Except Self Medium C C++
241. Different Ways to Add Parentheses Medium C++
242. Valid Anagram Easy C C++
258. Add Digits Easy C C++
260. Single Number III Medium C C++
263. Ugly Number Easy C C++
264. Ugly Number II Medium C C++
268. Missing Number Easy C C++
273. Integer to English Words Hard C C++
274. H-Index Medium C C++
275. H-Index II Medium C C++
278. First Bad Version Easy C++
279. Perfect Squares Medium C C++
283. Move Zeroes Easy C++
284. Peeking Iterator Medium C++
287. Find the Duplicate Number Medium C C++
289. Game of Life Medium C++
290. Word Pattern Easy C++
292. Nim Game Easy C C++
295. Find Median from Data Stream Hard C++
297. Serialize and Deserialize Binary Tree Hard C++
299. Bulls and Cows Medium C C++
300. Longest Increasing Subsequence Medium C C++
303. Range Sum Query - Immutable Easy C++
310. Minimum Height Trees Medium C C++
313. Super Ugly Number Medium C C++
316. Remove Duplicate Letters Medium C++
319. Bulb Switcher Medium C C++
322. Coin Change Medium C C++
326. Power of Three Easy C C++
330. Patching Array Hard C C++
334. Increasing Triplet Subsequence Medium C C++
338. Counting Bits Easy C C++
342. Power of Four Easy C C++
343. Integer Break Medium C++
344. Reverse String Easy C++
345. Reverse Vowels of a String Easy C C++
347. Top K Frequent Elements Medium C++
349. Intersection of Two Arrays Easy C C++
350. Intersection of Two Arrays II Easy C C++
355. Design Twitter Medium C++
357. Count Numbers with Unique Digits Medium C C++
367. Valid Perfect Square Easy C C++
368. Largest Divisible Subset Medium C C++
373. Find K Pairs with Smallest Sums Medium C C++
374. Guess Number Higher or Lower Medium C++
380. Insert Delete GetRandom O(1) Medium C++
383. Ransom Note Easy C C++
386. Lexicographical Numbers Medium C C++
387. First Unique Character in a String Easy C C++
389. Find the Difference Easy C++
392. Is Subsequence Easy C++
396. Rotate Function Medium C C++
402. Remove K Digits Medium C C++
404. Sum of Left Leaves Easy C++
405. Convert a Number to Hexadecimal Easy C C++
407. Trapping Rain Water II Hard C C++
409. Longest Palindrome Easy C C++
412. Fizz Buzz Easy C C++
413. Arithmetic Slices Medium C C++
414. Third Maximum Number Easy C C++
415. Add Strings Easy C C++
416. Partition Equal Subset Sum Medium C C++
417. Pacific Atlantic Water Flow Medium C C++
419. Battleships in a Board Medium C C++
432. All O`one Data Structure Hard C++
434. Number of Segments in a String Easy C C++
440. K-th Smallest in Lexicographical Order Hard C C++
441. Arranging Coins Easy C C++
442. Find All Duplicates in an Array Medium C C++
446. Arithmetic Slices II - Subsequence Hard C++
448. Find All Numbers Disappeared in an Array Easy C C++
451. Sort Characters By Frequency Medium C C++
452. Minimum Number of Arrows to Burst Balloons Medium C C++
454. 4Sum II Medium C++
455. Assign Cookies Easy C C++
456. 132 Pattern Medium C C++
458. Poor Pigs Hard C C++
459. Repeated Substring Pattern Easy C C++
461. Hamming Distance Easy C C++
462. Minimum Moves to Equal Array Elements II Medium C C++
463. Island Perimeter Easy C C++
474. Ones and Zeroes Medium C C++
476. Number Complement Easy C C++
485. Max Consecutive Ones Easy C++
494. Target Sum Medium C C++
495. Teemo Attacking Medium C C++
496. Next Greater Element I Easy C C++
498. Diagonal Traverse Medium C C++
500. Keyboard Row Easy C C++
502. IPO Hard C C++
504. Base 7 Easy C C++
506. Relative Ranks Easy C C++
509. Fibonacci Number Easy C C++
513. Find Bottom Left Tree Value Medium C++
514. Freedom Trail Hard C C++
515. Find Largest Value in Each Tree Row Medium C++
520. Detect Capital Easy C C++
523. Continuous Subarray Sum Medium C C++
525. Contiguous Array Medium C++
535. Encode and Decode TinyURL Medium C++
539. Minimum Time Difference Medium C C++
541. Reverse String II Easy C C++
543. Diameter of Binary Tree Easy C++
546. Remove Boxes Hard C C++
547. Number of Provinces Medium C C++
552. Student Attendance Record II Hard C C++
557. Reverse Words in a String III Easy C C++
561. Array Partition Easy C C++
566. Reshape the Matrix Easy C C++
567. Permutation in String Medium C C++
576. Out of Boundary Paths Medium C++
587. Erect the Fence Hard C++
590. N-ary Tree Postorder Traversal Easy C++
592. Fraction Addition and Subtraction Medium C C++
594. Longest Harmonious Subsequence Easy C C++
598. Range Addition II Easy C C++
605. Can Place Flowers Easy C C++
606. Construct String from Binary Tree Easy C++
611. Valid Triangle Number Medium C C++
617. Merge Two Binary Trees Easy C++
621. Task Scheduler Medium C C++
623. Add One Row to Tree Medium C++
624. Maximum Distance in Arrays Medium C C++
628. Maximum Product of Three Numbers Easy C C++
632. Smallest Range Covering Elements from K Lists Hard C++
633. Sum of Square Numbers Medium C C++
637. Average of Levels in Binary Tree Easy C++
640. Solve the Equation Medium C C++
641. Design Circular Deque Medium C++
645. Set Mismatch Easy C C++
647. Palindromic Substrings Medium C C++
648. Replace Words Medium C++
650. 2 Keys Keyboard Medium C C++
654. Maximum Binary Tree Medium C++
655. Print Binary Tree Medium C++
657. Robot Return to Origin Easy C C++
661. Image Smoother Easy C++
664. Strange Printer Hard C C++
670. Maximum Swap Medium C C++
678. Valid Parenthesis String Medium C C++
679. 24 Game Hard C C++
680. Valid Palindrome II Easy C C++
682. Baseball Game Easy C C++
684. Redundant Connection Medium C C++
689. Maximum Sum of 3 Non-Overlapping Subarrays Hard C C++
695. Max Area of Island Medium C C++
696. Count Binary Substrings Easy C C++
700. Search in a Binary Search Tree Easy C++
703. Kth Largest Element in a Stream Easy C++
709. To Lower Case Easy C C++
713. Subarray Product Less Than K Medium C C++
717. 1-bit and 2-bit Characters Easy C C++
719. Find K-th Smallest Pair Distance Hard C C++
725. Split Linked List in Parts Medium C++
726. Number of Atoms Hard C++
728. Self Dividing Numbers Easy C C++
729. My Calendar I Medium C++
731. My Calendar II Medium C++
732. My Calendar III Hard C++
739. Daily Temperatures Medium C C++
746. Min Cost Climbing Stairs Easy C++
752. Open the Lock Medium C C++
757. Set Intersection Size At Least Two Hard C C++
762. Prime Number of Set Bits in Binary Representation Easy C++
763. Partition Labels Medium C C++
769. Max Chunks To Make Sorted Medium C++
771. Jewels and Stones Easy C C++
773. Sliding Puzzle Hard C++
778. Swim in Rising Water Hard C C++
779. K-th Symbol in Grammar Medium C C++
781. Rabbits in Forest Medium C C++
784. Letter Case Permutation Medium C C++
786. K-th Smallest Prime Fraction Medium C C++
787. Cheapest Flights Within K Stops Medium C C++
790. Domino and Tromino Tiling Medium C C++
791. Custom Sort String Medium C C++
796. Rotate String Easy C C++
797. All Paths From Source to Target Medium C C++
802. Find Eventual Safe States Medium C C++
804. Unique Morse Code Words Easy C++
806. Number of Lines To Write String Easy C++
807. Max Increase to Keep City Skyline Medium C C++
811. Subdomain Visit Count Medium C++
812. Largest Triangle Area Easy C C++
814. Binary Tree Pruning Medium C++
815. Bus Routes Hard C++
821. Shortest Distance to a Character Easy C C++
823. Binary Trees With Factors Medium C++
826. Most Profit Assigning Work Medium C C++
827. Making A Large Island Hard C++
832. Flipping an Image Easy C++
834. Sum of Distances in Tree Hard C C++
838. Push Dominoes Medium C C++
840. Magic Squares In Grid Medium C C++
841. Keys and Rooms Medium C C++
844. Backspace String Compare Easy C++
846. Hand of Straights medium C C++
857. Minimum Cost to Hire K Workers Hard C++
859. Buddy Strings Easy C C++
860. Lemonade Change Easy C C++
861. Score After Flipping Matrix Medium C C++
865. Smallest Subtree with all the Deepest Nodes Medium C++
867. Transpose Matrix Easy C C++
869. Reordered Power of 2 Medium C C++
872. Leaf-Similar Trees Easy C++
873. Length of Longest Fibonacci Subsequence Medium C C++
874. Walking Robot Simulation Medium C++
875. Koko Eating Bananas Medium C C++
876. Middle of the Linked List Easy C++
877. Stone Game Medium C C++
880. Decoded String at Index Medium C++
881. Boats to Save People Medium C C++
883. Projection Area of 3D Shapes Easy C C++
884. Uncommon Words from Two Sentences Easy C++
885. Spiral Matrix III Medium C C++
888. Fair Candy Swap Easy C C++
889. Construct Binary Tree from Preorder and Postorder Traversal Medium C++
890. Find and Replace Pattern Medium C C++
892. Surface Area of 3D Shapes Easy C C++
893. Groups of Special-Equivalent Strings Medium C C++
894. All Possible Full Binary Trees Medium C++
897. Increasing Order Search Tree Easy C++
898. Bitwise ORs of Subarrays Medium C++
904. Fruit Into Baskets Medium C C++
905. Sort Array By Parity Easy C++
907. Sum of Subarray Minimums Medium C C++
908. Smallest Range I Easy C C++
909. Snakes and Ladders Medium C C++
911. Online Election Medium C++
912. Sort an Array Medium C C++
914. X of a Kind in a Deck of Cards Easy C C++
916. Word Subsets Medium C C++
921. Minimum Add to Make Parentheses Valid Medium C C++
925. Long Pressed Name Easy C C++
929. Unique Email Addresses Easy C C++
930. Binary Subarrays With Sum Medium C C++
931. Minimum Falling Path Sum Medium C++
933. Number of Recent Calls Easy C++
934. Shortest Bridge Medium C C++
935. Knight Dialer Easy C C++
938. Range Sum of BST Easy C++
942. DI String Match Easy C C++
944. Delete Columns to Make Sorted Easy C C++
945. Minimum Increment to Make Array Unique Medium C C++
947. Most Stones Removed with Same Row or Column Medium C++
948. Bag of Tokens Medium C C++
950. Reveal Cards In Increasing Order Medium C++
951. Flip Equivalent Binary Trees Medium C++
959. Regions Cut By Slashes Medium C C++
961. N-Repeated Element in Size 2N Array Easy C C++
962. Maximum Width Ramp Medium C C++
965. Univalued Binary Tree Easy C++
966. Vowel Spellchecker Medium C++
969. Pancake Sorting Medium C++
974. Subarray Sums Divisible by K Medium C C++
976. Largest Perimeter Triangle Easy C C++
977. Squares of a Sorted Array Easy C C++
979. Distribute Coins in Binary Tree Medium C++
980. Unique Paths III Hard C C++
983. Minimum Cost For Tickets Medium C C++
988. Smallest String Starting From Leaf Medium C++
991. Broken Calculator Medium C C++
992. Subarrays with K Different Integers Hard C++
995. Minimum Number of K Consecutive Bit Flips Hard C C++
997. Find the Town Judge Easy C C++
1002. Find Common Characters Easy C C++
1006. Clumsy Factorial Medium C C++
1007. Minimum Domino Rotations For Equal Row Medium C C++
1008. Construct Binary Search Tree from Preorder Traversal Medium C++
1009. Complement of Base 10 Integer Easy C C++
1011. Capacity To Ship Packages Within D Days Medium C C++
1014. Best Sightseeing Pair Medium C C++
1015. Smallest Integer Divisible by K Medium C C++
1018. Binary Prefix Divisible By 5 Easy C C++
1021. Remove Outermost Parentheses Easy C C++
1022. Sum of Root To Leaf Binary Numbers Easy C++
1025. Divisor Game Easy C C++
1026. Maximum Difference Between Node and Ancestor Medium C++
1028. Recover a Tree From Preorder Traversal Hard C++
1038. Binary Search Tree to Greater Sum Tree Medium C++
1039. Minimum Score Triangulation of Polygon Medium C C++
1043. Partition Array for Maximum Sum Medium C C++
1046. Last Stone Weight Easy C C++
1047. Remove All Adjacent Duplicates In String Medium C C++
1048. Longest String Chain Medium C++
1051. Height Checker Easy C C++
1052. Grumpy Bookstore Owner Medium C C++
1061. Lexicographically Smallest Equivalent String Medium C C++
1071. Greatest Common Divisor of Strings Easy C C++
1072. Flip Columns For Maximum Number of Equal Rows Medium C++
1074. Number of Submatrices That Sum to Target Hard C C++
1079. Letter Tile Possibilities Medium C C++
1080. Insufficient Nodes in Root to Leaf Paths Medium C++
1081. Smallest Subsequence of Distinct Characters Medium C++
1090. Largest Values From Labels Medium C C++
1092. Shortest Common Supersequence Hard C C++
1103. Distribute Candies to People Easy C C++
1104. Path In Zigzag Labelled Binary Tree Medium C C++
1105. Filling Bookcase Shelves Medium C C++
1106. Parsing A Boolean Expression Hard C C++
1108. Defanging an IP Address Easy C C++
1109. Corporate Flight Bookings Medium C C++
1110. Delete Nodes And Return Forest Medium C++
1111. Maximum Nesting Depth of Two Valid Parentheses Strings Medium C C++
1122. Relative Sort Array Easy C C++
1123. Lowest Common Ancestor of Deepest Leaves Medium C++
1128. Number of Equivalent Domino Pairs Easy C C++
1137. N-th Tribonacci Number Easy C C++
1140. Stone Game II Medium C C++
1143. Longest Common Subsequence Medium C C++
1155. Number of Dice Rolls With Target Sum Medium C C++
1160. Find Words That Can Be Formed by Characters Easy C C++
1170. Compare Strings by Frequency of the Smallest Character Medium C++
1175. Prime Arrangements Easy C C++
1184. Distance Between Bus Stops Easy C C++
1190. Reverse Substrings Between Each Pair of Parentheses Medium C C++
1195. Fizz Buzz Multithreaded Medium C++
1207. Unique Number of Occurrences Easy C++
1208. Get Equal Substrings Within Budget Medium C C++
1209. Remove All Adjacent Duplicates in String II Medium C C++
1210. Minimum Moves to Reach Target with Rotations Hard C++
1217. Minimum Cost to Move Chips to The Same Position Easy C C++
1219. Path with Maximum Gold Medium C C++
1220. Count Vowels Permutation Hard C C++
1221. Split a String in Balanced Strings Easy C C++
1222. Queens That Can Attack the King Medium C C++
1232. Check If It Is a Straight Line Easy C++
1233. Remove Sub-Folders from the Filesystem Medium C C++
1235. Maximum Profit in Job Scheduling Hard C++
1238. Circular Permutation in Binary Representation Medium C C++
1239. Maximum Length of a Concatenated String with Unique Characters Medium C C++
1247. Minimum Swaps to Make Strings Equal Medium C C++
1248. Count Number of Nice Subarrays Medium C C++
1252. Cells with Odd Values in a Matrix Easy C C++
1253. Reconstruct a 2-Row Binary Matrix Medium C C++
1255. Maximum Score Words Formed by Letters Hard C C++
1261. Find Elements in a Contaminated Binary Tree Medium C++
1262. Greatest Sum Divisible by Three Medium C C++
1266. Minimum Time Visiting All Points Easy C C++
1267. Count Servers that Communicate Medium C C++
1269. Number of Ways to Stay in the Same Place After Some Steps Hard C++
1275. Find Winner on a Tic Tac Toe Game Easy C C++
1277. Count Square Submatrices with All Ones Medium C C++
1281. Subtract the Product and Sum of Digits of an Integer Easy C C++
1282. Group the People Given the Group Size They Belong To Medium C C++
1286. Iterator for Combination Medium C++
1287. Element Appearing More Than 25% In Sorted Array Easy C C++
1289. Minimum Falling Path Sum II Hard C C++
1290. Convert Binary Number in a Linked List to Integer Easy C++
1291. Sequential Digits Medium C C++
1295. Find Numbers with Even Number of Digits Easy C C++
1298. Maximum Candies You Can Get from Boxes Hard C C++
1299. Replace Elements with Greatest Element on Right Side Easy C C++
1302. Deepest Leaves Sum Medium C++
1304. Find N Unique Integers Sum up to Zero Easy C C++
1305. All Elements in Two Binary Search Trees Medium C++
1309. Decrypt String from Alphabet to Integer Mapping Easy C C++
1310. XOR Queries of a Subarray Medium C C++
1313. Decompress Run-Length Encoded List Easy C C++
1314. Matrix Block Sum Medium C C++
1315. Sum of Nodes with Even-Valued Grandparent Medium C++
1317. Convert Integer to the Sum of Two No-Zero Integers Easy C C++
1318. Minimum Flips to Make a OR b Equal to c Medium C++
1323. Maximum 69 Number Easy C C++
1325. Delete Leaves With a Given Value Medium C++
1329. Sort the Matrix Diagonally Medium C C++
1331. Rank Transform of an Array Easy C C++
1332. Remove Palindromic Subsequences Medium C C++
1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance Medium C C++
1337. The K Weakest Rows in a Matrix Easy C++
1342. Number of Steps to Reduce a Number to Zero Easy C C++
1346. Check If N and Its Double Exist Easy C++
1347. Minimum Number of Steps to Make Two Strings Anagram Medium C C++
1348. Tweet Counts Per Frequency Medium C++
1351. Count Negative Numbers in a Sorted Matrix Easy C C++
1352. Product of the Last K Numbers Medium C++
1353. Maximum Number of Events That Can Be Attended Medium C C++
1356. Sort Integers by The Number of 1 Bits Easy C++
1357. Apply Discount Every n Orders Medium C++
1361. Validate Binary Tree Nodes Medium C C++
1365. How Many Numbers Are Smaller Than the Current Number Easy C++
1366. Rank Teams by Votes Medium C C++
1367. Linked List in Binary Tree Medium C++
1370. Increasing Decreasing String Easy C C++
1371. Find the Longest Substring Containing Vowels in Even Counts Medium C C++
1374. Generate a String With Characters That Have Odd Counts Easy C C++
1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree Medium C C++
1380. Lucky Numbers in a Matrix Easy C C++
1381. Design a Stack With Increment Operation Medium C++
1382. Balance a Binary Search Tree Medium C++
1394. Find Lucky Integer in an Array Easy C C++
1389. Create Target Array in the Given Order Medium C C++
1395. Count Number of Teams Medium C C++
1396. Design Underground System Medium C++
1399. Count Largest Group Easy C++
1402. Reducing Dishes Hard C C++
1403. Minimum Subsequence in Non-Increasing Order Easy C C++
1404. Number of Steps to Reduce a Number in Binary Representation to One Medium C C++
1405. Longest Happy String Medium C C++
1408. String Matching in an Array Easy C C++
1409. Queries on a Permutation With Key Medium C C++
1415. The k-th Lexicographical String of All Happy Strings of Length n Medium C C++
1418. Display Table of Food Orders in a Restaurant Medium C++
1419. Minimum Number of Frogs Croaking Medium C C++
1422. Maximum Score After Splitting a String Easy C C++
1424. Diagonal Traverse II Medium C++
1425. Constrained Subsequence Sum Hard C++
1431. Kids With the Greatest Number of Candies Easy C C++
1432. Max Difference You Can Get From Changing an Integer Medium C C++
1436. Destination City Easy C++
1437. Check If All 1's Are at Least Length K Places Away Easy C C++
1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit Medium C C++
1441. Build an Array With Stack Operations Medium C++
1442. Count Triplets That Can Form Two Arrays of Equal XOR Medium C C++
1448. Count Good Nodes in Binary Tree Medium C++
1450. Number of Students Doing Homework at a Given Time Easy C C++
1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence Easy C C++
1457. Pseudo-Palindromic Paths in a Binary Tree Medium C++
1458. Max Dot Product of Two Subsequences Hard C++
1460. Make Two Arrays Equal by Reversing Subarrays Easy C C++
1462. Course Schedule IV Medium C C++
1464. Maximum Product of Two Elements in an Array Easy C C++
1470. Shuffle the Array Easy C C++
1472. Design Browser History Medium C++
1475. Final Prices With a Special Discount in a Shop Easy C C++
1476. Subrectangle Queries Medium C++
1480. Running Sum of 1d Array Easy C C++
1481. Least Number of Unique Integers after K Removals Medium C++
1482. Minimum Number of Days to Make m Bouquets Medium C C++
1486. XOR Operation in an Array Easy C C++
1488. Avoid Flood in The City Medium C++
1493. Longest Subarray of 1's After Deleting One Element Medium C C++
1496. Path Crossing Easy C++
1497. Check If Array Pairs Are Divisible by k Medium C C++
1498. Number of Subsequences That Satisfy the Given Sum Condition Medium C C++
1503. Last Moment Before All Ants Fall Out of a Plank Medium C C++
1507. Reformat Date Easy C C++
1508. Range Sum of Sorted Subarray Sums Medium C C++
1509. Minimum Difference Between Largest and Smallest Value in Three Moves Medium C C++
1512. Number of Good Pairs Easy C C++
1513. Number of Substrings With Only 1s Medium C C++
1514. Path with Maximum Probability Medium C C++
1518. Water Bottles Easy C C++
1523. Count Odd Numbers in an Interval Range Easy C C++
1524. Number of Sub-arrays With Odd Sum Medium C C++
1526. Minimum Number of Increments on Subarrays to Form a Target Array Hard C C++
1528. Shuffle String Easy C C++
1529. Minimum Suffix Flips Medium C C++
1530. Number of Good Leaf Nodes Pairs Medium C++
1534. Count Good Triplets Easy C C++
1535. Find the Winner of an Array Game Medium C C++
1544. Make The String Great Easy C C++
1545. Find Kth Bit in Nth Binary String Medium C C++
1550. Three Consecutive Odds Easy C C++
1551. Minimum Operations to Make Array Equal Medium C C++
1552. Magnetic Force Between Two Balls Medium C C++
1557. Minimum Number of Vertices to Reach All Nodes Medium C C++
1561. Maximum Number of Coins You Can Get Medium C C++
1563. Stone Game V Hard C C++
1566. Detect Pattern of Length M Repeated K or More Times Easy C C++
1572. Matrix Diagonal Sum Easy C C++
1574. Shortest Subarray to be Removed to Make Array Sorted Medium C C++
1578. Minimum Time to Make Rope Colorful Medium C++
1579. Remove Max Number of Edges to Keep Graph Fully Traversable Hard C C++
1582. Special Positions in a Binary Matrix Easy C C++
1588. Sum of All Odd Length Subarrays Easy C C++
1590. Make Sum Divisible by P Medium C++
1593. Split a String Into the Max Number of Unique Substrings Medium C++
1598. Crawler Log Folder Easy C C++
1600. Throne Inheritance Medium C++
1603. Design Parking System Easy C++
1605. Find Valid Matrix Given Row and Column Sums Medium C C++
1608. Special Array With X Elements Greater Than or Equal X Easy C C++
1609. Even Odd Tree Medium C++
1611. Minimum One Bit Operations to Make Integers Zero Hard C C++
1614. Maximum Nesting Depth of the Parentheses Easy C++ C
1624. Largest Substring Between Two Equal Characters Easy C C++
1625. Lexicographically Smallest String After Applying Operations Medium C++
1627. Graph Connectivity With Threshold Hard C C++
1630. Arithmetic Subarrays Medium C C++
1636. Sort Array by Increasing Frequency Easy C C++
1637. Widest Vertical Area Between Two Points Containing No Points Medium C C++
1638. Count Substrings That Differ by One Character Medium C C++
1639. Number of Ways to Form a Target String Given a Dictionary Hard C C++
1641. Count Sorted Vowel Strings Medium C C++
1642. Furthest Building You Can Reach Medium C++
1652. Defuse the Bomb Medium C C++
1653. Minimum Deletions to Make String Balanced Medium C C++
1656. Design an Ordered Stream Easy C++
1657. Determine if Two Strings Are Close Medium C C++
1658. Minimum Operations to Reduce X to Zero Medium C++
1662. Check If Two String Arrays are Equivalent Easy C C++
1663. Smallest String With A Given Numeric Value Medium C C++
1668. Maximum Repeating Substring Easy C C++
1669. Merge In Between Linked Lists Medium C++
1671. Minimum Number of Removals to Make Mountain Array Hard C++
1672. Richest Customer Wealth Easy C C++
1678. Goal Parser Interpretation Easy C C++
1684. Count the Number of Consistent Strings Easy C++
1685. Sum of Absolute Differences in a Sorted Array Medium C C++
1686. Stone Game VI Medium C C++
1688. Count of Matches in Tournament Easy C C++
1689. Partitioning Into Minimum Number Of Deci-Binary Numbers Medium C C++
1690. Stone Game VII Medium C C++
1695. Maximum Erasure Value Medium C C++
1700. Number of Students Unable to Eat Lunch Easy C C++
1701. Average Waiting Time Medium C C++
1704. Determine if String Halves Are Alike Easy C C++
1706. Where Will the Ball Fall Medium C++
1710. Maximum Units on a Truck Easy C C++
1716. Calculate Money in Leetcode Bank Easy C C++
1717. Maximum Score From Removing Substrings Medium C C++
1718. Construct the Lexicographically Largest Valid Sequence Medium C C++
1720. Decode XORed Array Easy C C++
1723. Find Minimum Time to Finish All Jobs Hard C++
1725. Number Of Rectangles That Can Form The Largest Square Easy C C++
1726. Tuple with Same Product Medium C C++
1727. Largest Submatrix With Rearrangements Medium C C++
1732. Find the Highest Altitude Easy C C++
1733. Minimum Number of People to Teach Medium C C++
1742. Maximum Number of Balls in a Box Easy C C++
1743. Restore the Array From Adjacent Pairs Medium C++
1748. Sum of Unique Elements Easy C C++
1749. Maximum Absolute Sum of Any Subarray Medium C C++
1750. Minimum Length of String After Deleting Similar Ends Medium C C++
1751. Maximum Number of Events That Can Be Attended II Hard C C++
1752. Check if Array Is Sorted and Rotated Easy C C++
1758. Minimum Changes To Make Alternating Binary String Easy C C++
1759. Count Number of Homogenous Substrings Medium C C++
1760. Minimum Limit of Balls in a Bag Medium C C++
1765. Map of Highest Peak Medium C C++
1768. Merge Strings Alternately Easy C C++
1769. Minimum Number of Operations to Move All Balls to Each Box Medium C C++
1770. Maximum Score from Performing Multiplication Operations Hard C C++
1773. Count Items Matching a Rule Easy C C++
1780. Check if Number is a Sum of Powers of Three Medium C C++
1781. Sum of Beauty of All Substrings Medium C C++
1790. Check if One String Swap Can Make Strings Equal Easy C C++
1791. Find Center of Star Graph Easy C C++
1792. Maximum Average Pass Ratio Medium C++
1793. Maximum Score of a Good Subarray Hard C C++
1798. Maximum Number of Consecutive Values You Can Make Medium C C++
1800. Maximum Ascending Subarray Sum Easy C C++
1812. Determine Color of a Chessboard Square Easy C C++
1813. Sentence Similarity III Medium C C++
1814. Count Nice Pairs in an Array Medium C++
1816. Truncate Sentence Easy C C++
1817. Finding the Users Active Minutes Medium C C++
1823. Find the Winner of the Circular Game Medium C C++
1827. Minimum Operations to Make the Array Increasing Easy C C++
1828. Queries on Number of Points Inside a Circle Medium C C++
1829. Maximum XOR for Each Query Medium C C++
1832. Check if the Sentence Is Pangram Easy C C++
1833. Maximum Ice Cream Bars Medium C C++
1837. Sum of Digits in Base K Easy C C++
1838. Frequency of the Most Frequent Element Medium C++
1844. Replace All Digits with Characters Easy C C++
1845. Seat Reservation Manager Medium C++
1846. Maximum Element After Decreasing and Rearranging Medium C C++
1859. Sorting the Sentence Easy C C++
1860. Incremental Memory Leak Medium C C++
1861. Rotating the Box Medium C C++
1863. Sum of All Subset XOR Totals Easy C C++
1865. Finding Pairs With a Certain Sum Medium C++
1876. Substrings of Size Three with Distinct Characters Easy C C++
1877. Minimize Maximum Pair Sum in Array Medium C++ C++
1880. Check if Word Equals Summation of Two Words Easy C C++
1884. Egg Drop With 2 Eggs and N Floors Medium C C++
1887. Reduction Operations to Make the Array Elements Equal Medium C C++
1888. Minimum Number of Flips to Make the Binary String Alternating Medium C C++
1893. Check if All the Integers in a Range Are Covered Easy C C++
1894. Find the Student that Will Replace the Chalk Medium C C++
1895. Largest Magic Square Medium C C++
1897. Redistribute Characters to Make All Strings Equal Easy C C++
1903. Largest Odd Number in String Easy C C++
1904. The Number of Full Rounds You Have Played Medium C C++
1905. Count Sub Islands Medium C C++
1906. Minimum Absolute Difference Queries Medium C C++
1909. Remove One Element to Make the Array Strictly Increasing Easy C C++
1910. Remove All Occurrences of a Substring Medium C C++
1913. Maximum Product Difference Between Two Pairs Easy C C++
1915. Number of Wonderful Substrings Medium C C++
1920. Build Array from Permutation Easy C++
1921. Eliminate Maximum Number of Monsters Medium C C++
1922. Count Good Numbers Medium C C++
1925. Count Square Sum Triples Easy C C++
1929. Concatenation of Array Easy C C++
1930. Unique Length-3 Palindromic Subsequences Medium C C++
1935. Maximum Number of Words You Can Type Easy C C++
1936. Add Minimum Number of Rungs Medium C C++
1937. Maximum Number of Points with Cost Medium C C++
1941. Check if All Characters Have Equal Number of Occurrences Easy C C++
1942. The Number of the Smallest Unoccupied Chair Medium C++
1944. Number of Visible People in a Queue Hard C C++
1945. Sum of Digits of String After Convert Easy C C++
1957. Delete Characters to Make Fancy String Easy C C++
1963. Minimum Number of Swaps to Make the String Balanced Medium C C++
1967. Number of Strings That Appear as Substrings in Word Easy C C++
1971. Find if Path Exists in Graph Easy C C++
1974. Minimum Time to Type Word Using Special Typewriter Easy C C++
1975. Maximum Matrix Sum Medium C++
1976. Number of Ways to Arrive at Destination Medium C++
1979. Find Greatest Common Divisor of Array Easy C C++
1980. Find Unique Binary String Medium C++
1992. Find All Groups of Farmland Medium C C++
1995. Count Special Quadruplets Easy C C++
2000. Reverse Prefix of Word Easy C C++
2001. Number of Pairs of Interchangeable Rectangles Medium C C++
2006. Count Number of Pairs With Absolute Difference K Easy C C++
2009. Minimum Number of Operations to Make Array Continuous Hard C++
2016. Maximum Difference Between Increasing Elements Easy C C++
2011. Final Value of Variable After Performing Operations Easy C C++
2017. Grid Game Medium C C++
2018. Check if Word Can Be Placed In Crossword Medium C C++
2022. Convert 1D Array Into 2D Array Medium C C++
2023. Number of Pairs of Strings With Concatenation Equal to Target Medium C C++
2028. Find Missing Observations Medium C C++
2032. Two Out of Three Easy C C++
2033. Minimum Operations to Make a Uni-Value Grid Medium C C++
2037. Minimum Number of Moves to Seat Everyone Easy C C++
2038. Remove Colored Pieces if Both Neighbors are the Same Color Medium C C++
2042. Check if Numbers Are Ascending in a Sentence Easy C++
2043. Simple Bank System Medium C++
2044. Count Number of Maximum Bitwise-OR Subsets Medium C C++
2048. Next Greater Numerically Balanced Number Medium C C++
2050. Parallel Courses III Hard C++
2053. Kth Distinct String in an Array Easy C++
2054. Two Best Non-Overlapping Events Medium C++
2057. Smallest Index With Equal Value Easy C C++
2058. Find the Minimum and Maximum Number of Nodes Between Critical Points Medium C++
2062. Count Vowel Substrings of a String Easy C C++
2064. Minimized Maximum of Products Distributed to Any Store Medium C C++
2070. Most Beautiful Item for Each Query Medium C C++
2071. Maximum Number of Tasks You Can Assign Hard C C++
2073. Time Needed to Buy Tickets Easy C C++
2079. Watering Plants Medium C C++
2081. Sum of k-Mirror Numbers Hard C C++
2085. Count Common Words With One Occurrence Easy C++
2089. Find Target Indices After Sorting Array Easy C C++
2092. Find All People With Secret Hard C C++
2094. Finding 3-Digit Even Numbers Easy C C++
2096. Step-By-Step Directions From a Binary Tree Node to Another Medium C++
2099. Find Subsequence of Length K With the Largest Sum Easy C C++
2103. Rings and Rods Easy C C++
2108. Find First Palindromic String in the Array Easy C C++
2109. Adding Spaces to a String Medium C C++
2110. Number of Smooth Descent Periods of a Stock Medium C++
2114. Maximum Number of Words Found in Sentences Easy C C++
2115. Find All Possible Recipes from Given Supplies Medium C++
2116. Check if a Parentheses String Can Be Valid Medium C++
2119. A Number After a Double Reversal Easy C C++
2120. Execution of All Suffix Instructions Staying in a Grid Medium C C++
2124. Check if All A's Appears Before All B's Easy C C++
2125. Number of Laser Beams in a Bank Medium C C++
2130. Maximum Twin Sum of a Linked List Medium C++
2131. Longest Palindrome by Concatenating Two Letter Words Medium C++
2134. Minimum Swaps to Group All 1's Together II Medium C C++
2135. Count Words Obtained After Adding a Letter Medium C C++
2138. Divide a String Into Groups of Size k Easy C++
2140. Solving Questions With Brainpower Medium C C++
2141. Maximum Running Time of N Computers Hard C C++
2144. Minimum Cost of Buying Candies With Discount Easy C C++
2145. Count the Hidden Sequences Medium C C++
2147. Number of Ways to Divide a Long Corridor Hard C C++
2149. Rearrange Array Elements by Sign Medium C C++
2154. Keep Multiplying Found Values by Two Easy C C++
2160. Minimum Sum of Four Digit Number After Splitting Digits Easy C C++
2161. Partition Array According to Given Pivot Medium C C++
2165. Smallest Value of the Rearranged Number Medium C C++
2169. Count Operations to Obtain Zero Easy C C++
2170. Minimum Operations to Make the Array Alternating Medium C++
2176. Count Equal and Divisible Pairs in an Array Easy C C++
2179. Count Good Triplets in an Array Hard C C++
2181. Merge Nodes in Between Zeros Medium C++
2182. Construct String With Repeat Limit Medium C C++
2185. Counting Words With a Given Prefix Easy C C++
2191. Sort the Jumbled Numbers Medium C C++
2192. All Ancestors of a Node in a Directed Acyclic Graph Medium C++
2194. Cells in a Range on an Excel Sheet Easy C C++
2196. Create Binary Tree From Descriptions Medium C++
2197. Replace Non-Coprime Numbers in Array Hard C++
2200. Find All K-Distant Indices in an Array Easy C C++
2206. Divide Array Into Equal Pairs Easy C C++
2210. Count Hills and Valleys in an Array Easy C C++
2211. Count Collisions on a Road Medium C C++
2215. Find the Difference of Two Arrays Easy C C++
2216. Minimum Deletions to Make Array Beautiful Medium C C++
2220. Minimum Bit Flips to Convert Number Easy C C++
2221. Find Triangular Sum of an Array Medium C C++
2225. Find Players With Zero or One Losses Medium C++
2232. Minimize Result by Adding Parentheses to Expression Medium C C++
2235. Add Two Integers Easy C C++
2236. Root Equals Sum of Children Easy C++
2248. Intersection of Multiple Arrays Easy C C++
2251. Number of Flowers in Full Bloom Hard C++
2255. Count Prefixes of a Given String Easy C C++
2257. Count Unguarded Cells in the Grid Medium C C++
2264. Largest 3-Same-Digit Number in String Easy C C++
2226. Maximum Candies Allocated to K Children Medium C C++
2270. Number of Ways to Split Array Medium C C++
2275. Largest Combination With Bitwise AND Greater Than Zero Medium C C++
2278. Percentage of Letter in String Easy C C++
2283. Check if Number Has Equal Digit Count and Digit Value Easy C C++
2285. Maximum Total Importance of Roads Medium C C++
2290. Minimum Obstacle Removal to Reach Corner Hard C++
2294. Partition Array Such That Maximum Difference Is K Medium C C++
2300. Successful Pairs of Spells and Potions Medium C C++
2302. Count Subarrays With Score Less Than K Hard C C++
2309. Greatest English Letter in Upper and Lower Case Easy C++
2311. Longest Binary Subsequence Less Than or Equal to K Medium C C++
2315. Count Asterisks Easy C C++
2317. Maximum XOR After Operations Medium C C++
2325. Decode the Message Easy C C++
2326. Spiral Matrix IV Medium C++
2327. Number of People Aware of a Secret Medium C C++
2331. Evaluate Boolean Binary Tree Easy C++
2337. Move Pieces to Obtain a String Medium C C++
2341. Maximum Number of Pairs in Array Easy C C++
2342. Max Sum of a Pair With Equal Sum of Digits Medium C C++
2347. Best Poker Hand Easy C C++
2348. Number of Zero-Filled Subarrays Medium C C++
2351. First Letter to Appear Twice Easy C C++
2353. Design a Food Rating System Medium C++
2363. Merge Similar Items Easy C C++
2357. Make Array Zero by Subtracting Equal Amounts Easy C C++
2359. Find Closest Node to Given Two Nodes Medium C C++
2364. Count Number of Bad Pairs Medium C C++
2367. Number of Arithmetic Triplets Easy C C++
2370. Longest Ideal Subsequence Medium C C++
2373. Largest Local Values in a Matrix Easy C C++
2375. Construct Smallest Number From DI String Medium C C++
2379. Minimum Recolors to Get K Consecutive Black Blocks Easy C C++
2380. Time Needed to Rearrange a Binary String Medium C++
2381. Shifting Letters II Medium C C++
2385. Amount of Time for Binary Tree to Be Infected Medium C++
2389. Longest Subsequence With Limited Sum Medium C C++
2390. Removing Stars From a String Medium C C++
2391. Minimum Amount of Time to Collect Garbage Medium C C++
2396. Strictly Palindromic Number Medium C C++
2938. Separate Black and White Balls Medium C++
2942. Find Words Containing Character Easy C C++
2401. Longest Nice Subarray Medium C C++
2402. Meeting Rooms III Hard C C++
2405. Optimal Partition of String Medium C C++
2406. Divide Intervals Into Minimum Number of Groups Medium C C++
2410. Maximum Matching of Players With Trainers Medium C C++
2411. Smallest Subarrays With Maximum Bitwise OR Medium C C++
2413. Smallest Even Multiple Easy C C++
2415. Reverse Odd Levels of Binary Tree Medium C++
2416. Sum of Prefix Scores of Strings Hard C C++
2418. Sort the People Easy C C++
2419. Longest Subarray With Maximum Bitwise AND Medium C C++
2423. Remove Letter To Equalize Frequency Easy C C++
2424. Longest Uploaded Prefix Medium C++
2425. Bitwise XOR of All Pairings Medium C C++
2427. Number of Common Factors Medium C C++
2428. Maximum Sum of an Hourglass Medium C C++
2429. Minimize XOR Medium C C++
2433. Find The Original Array of Prefix Xor Medium C++
2434. Using a Robot to Print the Lexicographically Smallest String Medium C C++
2435. Paths in Matrix Whose Sum Is Divisible by K Hard C C++
2441. Largest Positive Integer That Exists With Its Negative Easy C C++
2442. Count Number of Distinct Integers After Reverse Operations Medium C C++
2444. Count Subarrays With Fixed Bounds Hard C C++
2460. Apply Operations to an Array Easy C C++
2461. Maximum Sum of Distinct Subarrays With Length K Medium C C++
2463. Minimum Total Distance Traveled Hard C++
2466. Count Ways To Build Good Strings Medium C C++
2467. Most Profitable Path in a Tree Medium C C++
2469. Convert the Temperature Easy C C++
2475. Number of Unequal Triplets in Array Easy C C++
2481. Minimum Cuts to Divide a Circle Easy C C++
2482. Difference Between Ones and Zeros in Row and Column Medium C C++
2485. Find the Pivot Integer Easy C C++
2486. Append Characters to String to Make Subsequence Medium C C++
2487. Remove Nodes From Linked List Medium C++
2490. Circular Sentence Easy C C++
2491. Divide Players Into Teams of Equal Skill Medium C C++
2493. Divide Nodes Into the Maximum Number of Groups Hard C++
2496. Maximum Value of a String in an Array Easy C C++
2497. Maximum Star Sum of a Graph Medium C++
2500. Delete Greatest Value in Each Row Easy C C++
2501. Longest Square Streak in an Array Medium C C++
2503. Maximum Number of Points From Grid Queries Hard C C++
2506. Count Pairs Of Similar Strings Easy C++
2511. Maximum Enemy Forts That Can Be Captured Easy C C++
2516. Take K of Each Character From Left and Right Medium C++
2520. Count the Digits That Divide a Number Easy C C++
2523. Closest Prime Numbers in Range Medium C C++
2525. Categorize Box According to Criteria Easy C C++
2528. Maximize the Minimum Powered City Hard C C++
2529. Maximum Count of Positive Integer and Negative Integer Easy C C++
2530. Maximal Score After Applying K Operations Medium C++
2531. Make Number of Distinct Characters Equal Medium C C++
2535. Difference Between Element Sum and Digit Sum of an Array Easy C C++
2537. Count the Number of Good Subarrays Medium C++
2540. Minimum Common Value Easy C C++
2544. Alternating Digit Sum Easy C C++
2545. Sort the Students by Their Kth Score Medium C C++
2349. Design a Number Container System Medium C++
2551. Put Marbles in Bags Hard C C++
2553. Separate the Digits in an Array Easy C C++
2554. Maximum Number of Integers to Choose From a Range I Medium C C++
2558. Take Gifts From the Richest Pile Easy C++
2559. Count Vowel Strings in Ranges Medium C C++
2560. House Robber IV Medium C C++
2563. Count the Number of Fair Pairs Medium C C++
2566. Maximum Difference by Remapping a Digit Easy C C++
2570. Merge Two 2D Arrays by Summing Values Easy C C++
2574. Left and Right Sum Differences Easy C C++
2577. Minimum Time to Visit a Cell In a Grid Hard C++
2578. Split With Minimum Sum Easy C C++
2579. Count Total Number of Colored Cells Medium C C++
2582. Pass the Pillow Easy C C++
2583. Kth Largest Sum in a Binary Tree Medium C++
2586. Count the Number of Vowel Strings in Range Easy C C++
2593. Find Score of an Array After Marking All Elements Medium C C++
2594. Minimum Time to Repair Cars Medium C C++
2595. Number of Even and Odd Bits Medium C C++
2597. The Number of Beautiful Subsets Medium C C++
2598. Smallest Missing Non-negative Integer After Operations Medium C C++
2601. Prime Subtraction Operation Medium C C++
2605. Form Smallest Number From Two Digit Arrays Easy C C++
2610. Convert an Array Into a 2D Array With Conditions Medium C++
2616. Minimize the Maximum Difference of Pairs Medium C C++
2640. Find the Score of All Prefixes of an Array Medium C C++
2641. Cousins in Binary Tree II Medium C++
2642. Design Graph With Shortest Path Calculator Hard C++
2643. Row With Maximum Ones Easy C C++
2651. Calculate Delayed Arrival Time Easy C C++
2652. Sum Multiples Easy C C++
2654. Minimum Number of Operations to Make All Array Elements Equal to 1 Medium C C++
2656. Maximum Sum With Exactly K Elements Easy C C++
2657. Find the Prefix Common Array of Two Arrays Medium C C++
2658. Maximum Number of Fish in a Grid Medium C C++
2661. First Completely Painted Row or Column Medium C C++
2670. Find the Distinct Difference Array Easy C C++
2678. Number of Senior Citizens Easy C C++
2683. Neighboring Bitwise XOR Medium C C++
2684. Maximum Number of Moves in a Grid Medium C C++
2685. Count the Number of Complete Components Medium C++
2696. Minimum String Length After Removing Substrings Easy C C++
2697. Lexicographically Smallest Palindrome Easy C C++
2698. Find the Punishment Number of an Integer Medium C C++
2706. Buy Two Chocolates Easy C C++
2707. Extra Characters in a String Medium C C++
2710. Remove Trailing Zeros From a String Easy C C++
2716. Minimize String Length Easy C C++
2733. Neither Minimum nor Maximum Easy C C++
2742. Painting the Walls Hard C++
2744. Find Maximum Number of String Pairs Easy C C++
2747. Count Zero Request Servers Medium C C++
2748. Number of Beautiful Pairs Easy C C++
2749. Minimum Operations to Make the Integer Zero Medium C C++
2751. Robot Collisions Hard C C++
2762. Continuous Subarrays Medium C C++
2769. Find the Maximum Achievable Number Easy C C++
2770. Maximum Number of Jumps to Reach the Last Index Medium C C++
2778. Sum of Squares of Special Elements Easy C C++
2779. Maximum Beauty of an Array After Applying Operation Medium C C++
2780. Minimum Index of a Valid Split Medium C C++
2785. Sort Vowels in a String Medium C C++
2788. Split Strings by Separator Easy C C++
2798. Number of Employees Who Met the Target Easy C C++
2799. Count Complete Subarrays in an Array Medium C C++
2807. Insert Greatest Common Divisors in Linked List Medium C++
2810. Faulty Keyboard Easy C C++
2812. Find the Safest Path in a Grid Medium C++
2816. Double a Number Represented as a Linked List Medium C++
2818. Apply Operations to Maximize Score Hard C++
2824. Count Pairs Whose Sum is Less than Target Easy C C++
2825. Make String a Subsequence Using Cyclic Increments Medium C C++
2828. Check if a String Is an Acronym of Words Easy C++
2843. Count Symmetric Integers Easy C C++
2848. Points That Intersect With Cars Easy C C++
2845. Count of Interesting Subarrays Medium C++
2849. Determine if a Cell Is Reachable at a Given Time Medium C C++
2859. Sum of Values at Indices With K Set Bits Easy C C++
2864. Maximum Odd Binary Number Easy C C++
2870. Minimum Number of Operations to Make Array Empty Medium C++
2872. Maximum Number of K-Divisible Components Hard C C++
2873. Maximum Value of an Ordered Triplet I Easy C C++
2874. Maximum Value of an Ordered Triplet II Medium C C++
2894. Divisible and Non-divisible Sums Difference Easy C C++
2900. Longest Unequal Adjacent Groups Subsequence I Easy C C++
2901. Longest Unequal Adjacent Groups Subsequence II Medium C C++
2913. Subarrays Distinct Element Sum of Squares I Easy C C++
2914. Minimum Number of Changes to Make Binary String Beautiful Medium C C++
2917. Find the K-or of an Array Easy C C++
2918. Minimum Equal Sum of Two Arrays After Replacing Zeros Medium C C++
2923. Find Champion I Easy C C++
2924. Find Champion II Medium C C++
2928. Distribute Candies Among Children I Easy C C++
2932. Maximum Strong Pair XOR I Easy C C++
2938. Separate Black and White Balls Medium C++
2940. Find Building Where Alice and Bob Can Meet Hard C C++
2948. Make Lexicographically Smallest Array by Swapping Elements Medium C C++
2951. Find the Peaks Easy C C++
2956. Find Common Elements Between Two Arrays Easy C C++
2958. Length of Longest Subarray With at Most K Frequency Medium C++
2960. Count Tested Devices After Test Operations Easy C C++
2962. Count Subarrays Where Max Element Appears at Least K Times Medium C C++
2965. Find Missing and Repeated Values Easy C C++
2966. Divide Array Into Arrays With Max Difference Medium C C++
2971. Find Polygon With the Largest Perimeter Medium C C++
2974. Minimum Number Game Easy C C++
2981. Find Longest Special Substring That Occurs Thrice I Medium C C++
2997. Minimum Number of Operations to Make Array XOR Equal to K Medium C C++
2998. Minimum Number of Operations to Make X and Y Equal Medium C C++
2999. Count the Number of Powerful Integers Medium C C++
3000. Maximum Area of Longest Diagonal Rectangle Easy C C++
3005. Count Elements With Maximum Frequency Easy C++
3007. Maximum Number That Sum of the Prices Is Less Than or Equal to K Medium C C++
3011. Find if Array Can Be Sorted Medium C C++
3016. Minimum Number of Pushes to Type Word II Medium C C++
3019. Number of Changing Keys Easy C C++
3021. Alice and Bob Playing Flower Game Medium C C++
3024. Type of Triangle Easy C C++
3025. Find the Number of Ways to Place People I Medium C C++
3027. Find the Number of Ways to Place People II Hard C C++
3028. Ant on the Boundary Easy C C++
3042. Count Prefix and Suffix Pairs I Easy C C++
3043. Find the Length of the Longest Common Prefix Medium C++
3046. Split the Array Easy C C++
3065. Minimum Operations to Exceed Threshold Value I Easy C C++
3066. Minimum Operations to Exceed Threshold Value II Medium C++
3068. Find the Maximum Sum of Node Values Hard C C++
3075. Maximize Happiness of Selected Children Medium C C++
3079. Find the Sum of Encrypted Integers Easy C C++
3085. Minimum Deletions to Make String K-Special Medium C C++
3097. Shortest Subarray With OR at Least K II Medium C C++
3099. Harshad Number Easy C C++
3100. Water Bottles II Medium C C++
3105. Longest Strictly Increasing or Strictly Decreasing Subarray Easy C C++
3108. Minimum Cost Walk in Weighted Graph Hard C C++
3110. Score of a String Easy C C++
3131. Find the Integer Added to Array I Easy C C++
3133. Minimum Array End Medium C C++
3136. Valid Word Easy C C++
3137. Minimum Number of Operations to Make Word K-Periodic Medium C++
3146. Permutation Difference between Two Strings Easy C C++
3147. Taking Maximum Energy From the Mystic Dungeon Medium C C++
3151. Special Array I Easy C C++
3152. Special Array II Medium C++
3158. Find the XOR of Numbers Which Appear Twice Easy C C++
3159. Find Occurrences of an Element in an Array Medium C C++
3160. Find the Number of Distinct Colors Among the Balls Medium C++
3162. Find the Number of Good Pairs I Easy C C++
3174. Clear Digits Easy C C++
3163. String Compression III Medium C C++
3168. Minimum Number of Chairs in a Waiting Room Easy C C++
3169. Count Days Without Meetings Medium C C++
3170. Lexicographically Minimum String After Removing Stars Medium C C++
3184. Count Pairs That Form a Complete Day I Easy C C++
3186. Maximum Total Damage With Spell Casting Medium C C++
3190. Find Minimum Operations to Make All Elements Divisible by Three Easy C C++
3191. Minimum Operations to Make Binary Array Elements Equal to One I Medium C C++
3194. Minimum Average of Smallest and Largest Elements Easy C C++
3195. Find the Minimum Area to Cover All Ones I Medium C C++
3201. Find the Maximum Length of Valid Subsequence I Medium C C++
3202. Find the Maximum Length of Valid Subsequence II Medium C C++
3211. Generate Binary Strings Without Adjacent Zeros Medium C C++
3217. Delete Nodes From Linked List Present in Array Medium C++
3223. Minimum Length of String After Operations Medium C C++
3227. Vowels Game in a String Medium C C++
3228. Maximum Number of Operations to Move Ones to the End Medium C C++
3232. Find if Digit Game Can Be Won Easy C C++
3239. Minimum Number of Flips to Make Binary Grid Palindromic I Medium C C++
3242. Design Neighbor Sum Service Easy C++
3243. Shortest Distance After Road Addition Queries I Medium C++
3248. Snake in Matrix Easy C C++
3254. Find the Power of K-Size Subarrays I Medium C C++
3258. Count Substrings That Satisfy K-Constraint I Easy C C++
3264. Final Array State After K Multiplication Operations I Easy C C++
3270. Find the Key of the Numbers Easy C C++
3271. Hash Divided String Medium C C++
3272. Find the Count of Good Integers Hard C++
3274. Check if Two Chessboard Squares Have the Same Color Easy C++
3280. Convert Date to Binary Easy C C++
3285. Find Indices of Stable Mountains Easy C C++
3289. The Two Sneaky Numbers of Digitville Easy C C++
3300. Minimum Element After Replacement With Digit Sum Easy C++
3304. Find the K-th Character in String Game I Easy C C++
3307. Find the K-th Character in String Game II Hard C C++
3314. Construct the Minimum Bitwise Array I Easy C C++
3318. Find X-Sum of All K-Long Subarrays I Easy C C++
3324. Find the Sequence of Strings Appeared on the Screen Medium C C++
3330. Find the Original Typed String I Easy C C++
3335. Total Characters in String After Transformations I Medium C C++
3337. Total Characters in String After Transformations II Hard C++
3340. Check Balanced String Easy C C++
3341. Find Minimum Time to Reach Last Room I Medium C C++
3342. Find Minimum Time to Reach Last Room II Medium C C++
3343. Count Number of Balanced Permutations Hard C++
3346. Maximum Frequency of an Element After Performing Operations I Medium C C++
3347. Maximum Frequency of an Element After Performing Operations II Hard C C++
3349. Adjacent Increasing Subarrays Detection I Easy C C++
3350. Adjacent Increasing Subarrays Detection II Medium C C++
3354. Make Array Elements Equal to Zero Easy C C++
3355. Zero Array Transformation I Medium C C++
3356. Zero Array Transformation II Medium C C++
3362. Zero Array Transformation III Medium C C++
3370. Smallest Number With All Set Bits Easy C C++
3375. Minimum Operations to Make Array Values Equal to K Easy C C++
3381. Maximum Subarray Sum With Length Divisible by K Medium C C++
3392. Count Subarrays of Length Three With a Condition Easy C C++
3405. Count the Number of Arrays with K Matching Adjacent Elements Hard C C++
3396. Minimum Number of Operations to Make Elements in Array Distinct Easy C C++
3397. Maximum Number of Distinct Elements After Operations Medium C C++
3402. Minimum Operations to Make Columns Strictly Increasing Easy C++
3403. Find the Lexicographically Largest String From the Box I Medium C C++
3408. Design Task Manager Medium C++
3423. Maximum Difference Between Adjacent Elements in a Circular Array Easy C C++
3427. Sum of Variable Length Subarrays Easy C C++
3432. Count Partitions with Even Sum Difference Easy C C++
3439. Reschedule Meetings for Maximum Free Time I Medium C C++
3440. Reschedule Meetings for Maximum Free Time II Medium C C++
3442. Maximum Difference Between Even and Odd Frequency I Easy C C++
3443. Maximum Manhattan Distance After K Changes Medium C C++
3445. Maximum Difference Between Even and Odd Frequency II Hard C C++
3446. Sort Matrix by Diagonals Medium C C++
3461. Check If Digits Are Equal in String After Operations I Easy C C++
3467. Transform Array by Parity Easy C C++
3477. Fruits Into Baskets II Easy C C++
3484. Design Spreadsheet Medium C++
3487. Maximum Unique Subarray Sum After Deletion Easy C++
3492. Maximum Containers on a Ship Easy C C++
3494. Find the Minimum Amount of Time to Brew Potions Medium C C++
3498. Reverse Degree of a String Easy C C++
3502. Minimum Cost to Reach Every Position Easy C C++
3508. Implement Router Medium C++
3512. Minimum Operations to Make Array Sum Divisible by K Easy C C++
3516. Find Closest Person Easy C C++
3527. Find the Most Common Response Medium C++
3531. Count Covered Buildings Medium C++
3541. Find Most Frequent Vowel and Consonant Easy C C++
3542. Minimum Operations to Convert All Elements to Zero Medium C C++
3545. Minimum Deletions for At Most K Distinct Characters Easy C C++
3550. Smallest Index With Digit Sum Equal to Index Easy C C++
3577. Count the Number of Computer Unlocking Permutations Medium C++
3583. Count Special Triplets Medium C++
3602. Hexadecimal and Hexatrigesimal Conversion Easy C C++
3606. Coupon Code Validator Easy C++
3658. GCD of Odd and Even Sums Easy C C++
3668. Restore Finishing Order Easy C C++
3683. Earliest Time to Finish One Task Easy C C++
3684. Maximize Sum of At Most K Distinct Elements Easy C C++
3688. Bitwise OR of Even Numbers in an Array Easy C C++
3701. Compute Alternating Sum Easy C C++
3712. Sum of Elements With Frequency Divisible by K Easy C C++
3726. Remove Zeros in Decimal Representation Easy C C++
3731. Find Missing Elements Easy C C++
3736. Minimum Moves to Equal Array Elements III Easy C C++
3745. Maximize Expression of Three Elements Easy C++
3750. Minimum Number of Flips to Reverse Binary String Easy C C++

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Copyright © 2023-2025 Alfi Maulana

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A dedicated workspace and archive for my LeetCode submissions

leetcode.com/threeal

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November 2025 Latest
Dec 12, 2025
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