摘要：
Given a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island is surrounded by water and is formed by connecting adjacen 阅读全文
摘要：
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining. Exampl 阅读全文
摘要：
Download Git for windowsOpen Git BashType in "ssh-keygen -t rsa", and then press Enter button three timesYou can find the public key in the "file id_r... 阅读全文
摘要：
Given an input string (s) and a pattern (p), implement wildcard pattern matching with support for '?' and '*' where: '?' Matches any single character. 阅读全文
