摘要： Rain Terraces (Trapping Rain Water) Problem Given an array of non-negative integers representing terraces in an elevation map where the width of each 阅读全文

摘要： Unique Paths Problem A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either d 阅读全文

摘要： 斐波那契数列：0 1 1 2 3 5 8 13 21... 给出一个n，求数组。 代码如下： 阅读全文