Tag: online judge

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. …

This puzzle is from Leetcode Online Judge and this may appear quite often during interviews. This puzzle asks you to find the minimal sum for a number triangle. You …

Given a string that consists of words (non-space characters count as part of a word), you are required to output the new sentence that reverses the words. For example, …

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). …

Almost every online judge has a “A+B” problem. The first problem (easiest) is often present to allow testing if online judges are working (of course they are!) This problem …