Maximal Rectangle #hard [Maximal Square.md](Maximal Square.md) [Largest Rectangle in Histogram.md](Largest Rectangle in His...

Maximal Square #mediumGiven an m x n binary matrix filled with 0‘s and 1‘s, find the largest square containing only 1‘s and r...

Minimum Window Substring #hardGiven two strings s and t of lengths m and n respectively, return the minimum window substring ...

Next PermutationImplement next permutation, which rearranges numbers into the lexicographically next greater permutation of n...

Regular Expression Matching #hardGiven an input string s and a pattern p, implement regular expression matching with support ...

Median of two sorted arrays #hardGiven two sorted arrays nums1 and nums2 of size m and n respectively, return the median of t...

Trapping Rain Water #hardGiven n non-negative integers representing an elevation map where the width of each bar is 1, comput...

1. Project Introduction1.1 Background:Nowadays, thanks to the fast development, tall buildings with more than 20 floors are e...