题目描述 Given a string containing just the characters ‘(‘ and ‘)’, find the length of the…

给自己的目标：[LeetCode](https://leetcode.com/ "Online Judge Platform") 上每日一题 在做题的过程中记录下解题的思路或者重要的代码碎片以便后来翻阅。 项目源码：gi…

45. Jump Game II 题目 Given an array of non-negative integers, you are initially positioned at the first index o…

  Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; …

题目： Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest p…

Valid Anagram Given two strings s and t, write a function to determine if t is an anagram of s. For example, s…

1、题目描述 In an array A of 0s and 1s, how many non-empty subarrays have sum S? Example 1: Input: A = [1,0,1,0,1],…

Difficulty : Medium Given a string s and a set of n substrings. You are supposed to remove every instance of t…

  Given a string S and a string T, find the minimum window in S which will contain all the characters in …

  Given a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island i…

  Your task is to calculate ab mod 1337 where a is a positive integer and b is an extremely large positiv…

  A sequence of numbers is called a wiggle sequence if the differences between successive numbers strictl…