Problem Description: There is a new alien language which uses the latin alphabet. However, the orde ...

Problem Description: A 2d grid map of m rows and n columns is initially filled with water. We may p ...

Problem Description: You are playing the following Flip Game with your friend: Given a string that ...

Problem Description: You are playing the following Flip Game with your friend: Given a string that ...

Problem Description: Given a pattern and a string str, find if str follows the same pattern. Here ...

Problem Description: Given an array of n integers nums and a target, find the number of index tripl ...

Problem Description: Given two sparse matrices A and B, return the result of AB. You may assume th ...

Problem Description: Given an array of meeting time intervals consisting of start and end times [[s ...

Problem Description: Design an algorithm to encode a list of strings to a string. The encoded strin ...

Problem Description: An abbreviation of a word follows the form <first letter><number>& ...