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leetcode day5
【242】Valid Anagram:Given two stringssandt, write a function to determine iftis an anagram ofs.For example,s= "anagram",t= "nagaram", return true.s= "r...
分类:其他好文   时间:2015-11-13 11:43:30    阅读次数:193
Leetcode Valid Anagram
Given two strings s and t, write a function to determine if t is an anagram of s.For example,s = "anagram", t = "nagaram", return true.s = "rat", t = ...
分类:其他好文   时间:2015-11-12 17:48:12    阅读次数:223
[LeetCode] Different Ways to Add Parentheses
Given a string of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators. The valid operators are +, - and *.Example 1Input: "2...
分类:其他好文   时间:2015-11-11 16:44:05    阅读次数:195
LeetCode 20 Valid Parentheses
翻译给定一个只包含'(', ')', '{', '}', '[' 和']'的字符串,判断这个输入的字符串是否是有效的。括号必须在正确的形式下闭合,"()" 和"()[]{}" 是有效的,但是 "(]" 和"([)]" 则不是。原文Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determ...
分类:其他好文   时间:2015-11-10 21:14:33    阅读次数:182
LeetCode OJ:Restore IP Addresses(存储IP地址)
Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"25525511135",return["255.2...
分类:其他好文   时间:2015-11-10 17:50:56    阅读次数:243
LeetCode Valid Number
原题链接在这里:https://leetcode.com/problems/valid-number/可以按照正则表达式 regex来比照,如Method 1.Method 2 是分类讨论,原string trim后从e拆开,前面部分可以有dot, 后面部分不可以有dot.Note: 注意trim后...
分类:其他好文   时间:2015-11-10 07:00:26    阅读次数:244
[LeetCode]Valid Palindrome
题目描述:(链接)Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a plan, a ca...
分类:其他好文   时间:2015-11-10 00:21:47    阅读次数:171
[LeetCode] Valid Anagram
Given two strings s and t, write a function to determine if t is an anagram of s.For example, s = “anagram”, t = “nagaram”, return true. s = “rat”, t = “car”, return false.Note: You may assume the s...
分类:其他好文   时间:2015-11-09 12:49:46    阅读次数:254
ubuntu使用遇到的问题
1.不适当操作,改了sudoers的权限scdev@scdev1005:~$ sudo vim /etc/profilesudo: /etc/sudoers is owned by uid 1000, should be 0sudo: no valid sudoers sources found, ...
分类:系统相关   时间:2015-11-09 12:39:06    阅读次数:249
Codeforces Round #277 (Div. 2) D. Valid Sets DP
D. Valid SetsAs you know, an undirected connected graph withnnodes andn?-?1edges is called atree. You are given an integerdand a tree consisting ofnno...
分类:其他好文   时间:2015-11-09 01:23:41    阅读次数:245
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