Coding Interview Questions

Input: 3 Output: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [ 7, 6, 5 ] ] Before looking into the solution, I recommend you to please go through print matrix…

Example: Input: 1->2->3->4->5->NULL Output: 5->4->3->2->1->NULL   This problem can be solved in 2 ways. 1.…

Given a collection of intervals, merge all overlapping intervals. Example 1: Input: [[1,3],[2,6],[8,10],[15,18]] Output:…

Explanation: Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array…

Example 1: Input: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] Output: [1,2,3,6,9,8,7,4,5] The Solution is very simple. As shown in the image…

Example 1: Input: 2.00000, 10 Output: 1024.00000 Example 2: Input: 2.10000, 3 Output: 9.26100 Example 3: Input: 2.00000, -2 Output: 0.25000…

Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after…

Given an array of strings, group anagrams together. Example: Input: ["eat", "tea", "tan", "ate",…

Note: You have to rotate the image in-place, which means you have to modify the input 2D matrix directly. DO NOT allocate another 2D matrix…

Example: Input: [1,1,2] Output: [ [1,1,2], [1,2,1], [2,1,1] ] In my pervious post we have discussed three solutions where the numbers are…