小白正奋斗

原题网址(中)：https://leetcode-cn.com/problems/binary-tree-pruning/原题网址(英)：https://leetcode.com/problems/binary-tree-pruning/题目：We are given the head node root of a binary tree, where additionally every...

原题网址(中)：https://leetcode-cn.com/problems/two-sum/原题网址(英)：https://leetcode.com/problems/two-sum/题目：Given an array of integers, return indices of the two numbers such that they add up to a specific ...

原题网址(中)：https://leetcode-cn.com/problems/add-two-numbers/原题网址(英)：https://leetcode.com/problems/add-two-numbers/题目：You are given two non-empty linked lists representing two non-negative integers. T...

原题网址(中)：https://leetcode-cn.com/problems/zigzag-conversion/原题网址(英)：https://leetcode.com/problems/zigzag-conversion/题目：The string “PAYPALISHIRING” is written in a zigzag pattern on a given number o...

原题网址(中)：https://leetcode-cn.com/problems/palindrome-number/原题网址(英)：https://leetcode.com/problems/palindrome-number/题目：Determine whether an integer is a palindrome. An integer is a palindrome when ...

原题网址(中)：https://leetcode-cn.com/problems/longest-common-prefix/原题网址(英)：https://leetcode.com/problems/longest-common-prefix/题目：Write a function to find the longest common prefix string amongst an a...

原题网址(中)：https://leetcode-cn.com/problems/3sum/submissions/原题网址(英)：https://leetcode.com/problems/3sum/submissions/题目：Given an array nums of n integers, are there elements a, b, c in nums such that ...

原题网址(中)：https://leetcode-cn.com/problems/word-search/原题网址(英)：https://leetcode.com/problems/word-search/题目：Given a 2D board and a word, find if the word exists in the grid.The word can be construc...