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LeetCode "Encode and Decode Strings"
This is abouthttps://en.wikipedia.org/wiki/Run-length_encoding. The trick is, for a valid char, we only compress up to 254 occurences - count 255 mean...
分类:Web程序   时间:2015-08-29 06:10:34    阅读次数:327
Valid Anagram
https://leetcode.com/problems/valid-anagram/“桶”的思想,通过统计每个字符出现的频率可以得到两个单词是否同构。 1 class Solution { 2 public: 3 bool isAnagram(string s, string t) { ...
分类:其他好文   时间:2015-08-28 19:36:26    阅读次数:167
[LeetCode] Valid Parentheses
class Solution {public: bool isValid(string s) { if (s.size() == 0) { return true; } if (s.size() % 2) { ...
分类:其他好文   时间:2015-08-28 10:54:32    阅读次数:133
SpringMVC 使用JSR-303进行校验 @Valid
使用注解 一、准备校验时使用的JAR validation-api-1.0.0.GA.jar:JDK的接口; hibernate-validator-4.2.0.Final.jar是对上述接口的实现; log4j、slf4j、slf4j-log4j 二、编写需要校验的bean @NotNull(message="...
分类:编程语言   时间:2015-08-27 19:29:46    阅读次数:162
LeetCode: Valid Anagram
题目链接:https://leetcode.com/problems/valid-anagram/ 题目: 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. ...
分类:其他好文   时间:2015-08-27 18:49:59    阅读次数:177
[ios]"The identity used to sign the executable is no longer valid"错误解决方法
重新去开发者网站,申请一遍profiles参考:http://www.bubuko.com/infodetail-982908.html我出现这个错误的情况,程序提交app store之后,第二天,在手机上运行程序,出现"The identity used to sign the executabl...
分类:移动开发   时间:2015-08-27 10:58:13    阅读次数:136
LeetCode(36)Valid Sudoku
题目Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with the character ‘.’. A partially filled sudoku wh...
分类:其他好文   时间:2015-08-25 21:46:23    阅读次数:153
Linux内核工程导论——内存管理(三)
用户端内核内存参数调整 /proc/sys/vm/ (需要根据内核版本调整) 交换相关 swap_token_timeout  Thisfile contains valid hold time of swap out protection token. The Linux VM hastoken based thrashing control mechanism and uses the...
分类:系统相关   时间:2015-08-25 21:42:34    阅读次数:354
LeetCode(36)Valid Sudoku
题目Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled wi...
分类:其他好文   时间:2015-08-25 21:29:04    阅读次数:183
【LeetCode】20. Valid Parentheses
题目:Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets must close in the corre...
分类:其他好文   时间:2015-08-25 18:23:37    阅读次数:120
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