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全部文章（共243篇）

LeetCode: 863. All Nodes Distance K in Binary Tree

LeetCode: 863. All Nodes Distance K in Binary Tree 题目描述 We are given a binary tree (with root node root), a target node, and an integer value K. Re...

2018-07-01

0 485

LeetCode: 860. Lemonade Change

LeetCode: 860. Lemonade Change 题目描述 At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and order one ...

2018-07-01

0 411

LeetCode: Weekly Contest 91

LeetCode: Weekly Contest 91 立个 flag: 希望以后能够每周参加 LeetCode 的周赛。 P.S. 比赛时写的代码可能不太具有可读性。题解列表 1. LeetCode: 860. Lemonade Change 题解这道题是签到题，利用贪心思...

2018-07-01

0 771

LeetCode: 136. Single Number

LeetCode: 136. Single Number 题目描述 Given a non-empty array of integers, every element appears twice except for one. Find that single one. Note: You...

2018-06-30

0 418

LeetCode: 135. Candy

LeetCode: 135. Candy 题目描述 There are N children standing in a line. Each child is assigned a rating value. You are giving candies to these children ...

2018-06-30

0 421

LeetCode: 134. Gas Station

LeetCode: 134. Gas Station 题目描述 There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car wit...

2018-06-29

0 434

LeetCode: 133. Clone Graph

LeetCode: 133. Clone Graph 题目描述 Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ’s undirected gra...

2018-06-28

0 393

LeetCode：132. Palindrome Partitioning II

LeetCode: 132. Palindrome Partitioning II 题目描述 Given a string s, partition s such that every substring of the partition is a palindrome. Return the...

leetcode

2018-06-27

0 422

LeetCode: 131. Palindrome Partitioning

LeetCode: 131. Palindrome Partitioning I’m come back ! 从今天开始，争取每天刷一道 LeetCode，并写一篇相应的题解。题目描述 Given a string s, partition s such that every su...

2018-06-26

0 543

LeetCode： 130. Surrounded Regions

LeetCode: 130. Surrounded Regions 忙于毕设和工作，很久没有更新了…… 题目描述 Given a 2D board containing 'X' and 'O' (the letter O), capture all regions surround...

leetcode

2018-05-23

0 467