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全部文章（共243篇）

LeetCode: 189. Rotate Array

LeetCode: 189. Rotate Array 题目描述 Given an array, rotate the array to the right by k steps, where k is non-negative. Example 1: Input: [1,2,3,4,5,6...

2018-08-28

0 496

LeetCode: 188. Best Time to Buy and Sell Stock IV

LeetCode: 188. Best Time to Buy and Sell Stock IV 题目描述 Say you have an array for which the ith element is the price of a given stock on day i. Desi...

2018-08-27

0 388

TCP/IP协议(4): 地址解析协议(ARP) —— 网络地址转换为物理地址的方式

TCP/IP协议(4): 地址解析协议(ARP)——网络地址转换为物理地址的方式关于地址解析协议(Address Resolution Protocol, ARP) 关于 ARP 地址解析协议(Address Resolution Protocol, ARP) 协议是用于根据给定网络层...

2018-08-26

0 607

LeetCode: 895. Maximum Frequency Stack

LeetCode: 895. Maximum Frequency Stack 题目描述 Implement FreqStack, a class which simulates the operation of a stack-like data structure. FreqStack ha...

2018-08-26

0 443

LeetCode: 894. All Possible Full Binary Trees

LeetCode: 894. All Possible Full Binary Trees 题目描述 A full binary tree is a binary tree where each node has exactly 0 or 2 children. Return a list o...

2018-08-26

0 420

LeetCode: 893. Groups of Special-Equivalent Strings

LeetCode: 893. Groups of Special-Equivalent Strings 题目描述 You are given an array A of strings. Two strings S and T are special-equivalent if after a...

2018-08-26

0 411

LeetCode: 892. Surface Area of 3D Shapes

LeetCode: 892. Surface Area of 3D Shapes 题目描述 On a N * N grid, we place some 1 * 1 * 1 cubes. Each value v = grid[i][j] represents a tower of v cub...

2018-08-26

0 447

LeetCode: Weekly Contest 99

LeetCode: Weekly Contest 99 题解列表 1. LeetCode: 892. Surface Area of 3D Shapes 题解分别对每个每个坐标的前后左右上下六个方向求表面积。 2. LeetCode: 893. Groups of Special...

2018-08-26

0 497

LeetCode: 187. Repeated DNA Sequences

LeetCode: 187. Repeated DNA Sequences 解题思路 All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: "ACGAATTC...

2018-08-25

0 407

LeetCode: 185. Department Top Three Salaries

LeetCode: 185. Department Top Three Salaries 题目描述 The Employee table holds all employees. Every employee has an Id, and there is also a column for t...

2018-08-24

0 454