[LeetCode] 1. Two Sum 两数之和
Given an array of integers, return indices of the two numbers such that they add up to a specific ...
花费 19 ms
java中char类型转换成int类型的两种方法
方法一： char ch = '9'; if (Character.isDigit(ch)){ // 判断是否是数字 int num = Integer.parseInt(String.valu ...
[LeetCode] 15. 3Sum 三数之和
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all ...
[LeetCode] 4. Median of Two Sorted Arrays 两个有序数组的中位数
There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the ...
[LeetCode] 5. Longest Palindromic Substring 最长回文子串
Given a string s, find the longest palindromic substring in s. You may assume that the maximum le ...
[LeetCode] 3. Longest Substring Without Repeating Characters 最长无重复字符的子串
Given a string, find the length of the longest substring without repeating characters. E ...
[LeetCode] 10. Regular Expression Matching 正则表达式匹配
Given an input string (s) and a pattern (p), implement regular expression matching with support f ...
LRU Cache
LRU Cache 题目链接：https://oj.leetcode.com/problems/lru-cache/ Design and implement a data struct ...
LeetCode刷题专栏第一篇--思维导图&时间安排
昨天是元宵节，过完元宵节相当于这个年正式过完了。不知道大家有没有投入继续投入紧张的学习工作中。年前我想开一个Leetcode刷题专栏，于是发了一个投票想了解大家的需求征集意见。投票于2019年2月 ...
[LeetCode] Task Scheduler 任务行程表
Given a char array representing tasks CPU need to do. It contains capital letters A to Z where di ...