Linux BASH Coding Exercise – Transpose File
Given a text file file.txt, transpose its content. You may assume that each row has the same number of columns and each field is separated by the ‘ ‘ …
Tag: leetcode
C++ Function to Check if Integer is Power of Two
Given an integer, write a function to determine if it is a power of two. This is not new, and the solution has been posted at Using a Faster …
Regex Coding Exercise – Valid Phone Numbers
Regular Expressions (Regex) are very powerful and useful tool to describe patterns. https://leetcode.com/problems/valid-phone-numbers/ Given a text file file.txt that contains list of phone numbers (one per line), write a …
SQL Coding Exercise – Rank Scores
Submit your SQL to Leetcode online judge: https://oj.leetcode.com/problems/rank-scores/ Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. …
C/C++ Coding Exercise – Unique Paths – LeetCode Online Judge – Dynamic Programming – Recursive Formula
March 17, 2014
algorithms, c / c++, code, code library, dynamic programming, leetcode online judge, math, optimization, programming languages
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Remember a couple days ago, I write a solution to this puzzle using Dynamic Programming (DP)? The DP solution helps to avoid duplicate computation in the sub-problems (smaller size). …
