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全部文章（共243篇）

LeetCode: 96. Unique Binary Search Trees

LeetCode: 96. Unique Binary Search Trees 题目描述 Given n, how many structurally unique BST’s (binary search trees) that store values 1 … n? Example: ...

2018-07-05

0 438

LeetCode: 104. Maximum Depth of Binary Tree

LeetCode: 104. Maximum Depth of Binary Tree 题目描述 Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the lo...

2018-07-05

0 428

LeetCode: 140. Word Break II

LeetCode: 140. Word Break II 题目描述 Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, add spaces in s to cons...

2018-07-05

0 406

LeetCode: 2. Add Two Numbers

LeetCode: 2. Add Two Numbers 题目描述 You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse ...

2018-07-04

0 468

LeetCode: 1. Two Sum

LeetCode: 1. Two Sum 后面会补上之前刷过却没写题解的题目。题目描述 Given an array of integers, return indices of the two numbers such that they add up to a specific...

2018-07-04

0 398

LeetCode: 139. Word Break

LeetCode: 139. Word Break 题目描述 Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, determine if s can be segm...

2018-07-04

0 502

LeetCode: 138. Copy List with Random Pointer

LeetCode: 138. Copy List with Random Pointer 题目描述 A linked list is given such that each node contains an additional random pointer which could point...

leetcode

2018-07-03

0 584

LeetCode: 137. Single Number II

LeetCode: 137. Single Number II 题目描述 Given a non-empty array of integers, every element appears three times except for one, which appears exactly on...

2018-07-02

0 459

LeetCode: 862. Shortest Subarray with Sum at Least K

LeetCode: 862. Shortest Subarray with Sum at Least K 题目描述 Return the length of the shortest, non-empty, contiguous subarray of A with sum at least K...

2018-07-01

0 974

LeetCode: 861. Score After Flipping Matrix

LeetCode: 861. Score After Flipping Matrix 题目描述 We have a two dimensional matrix A where each value is 0 or 1. A move consists of choosing any row ...

2018-07-01

0 454