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[LeetCode]Evaluate Reverse Polish Notation
Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another expression. Some examples: ["2", "1", ...
分类:其他好文   时间:2015-01-04 10:10:36    阅读次数:167
Twitter OA prepare: Anagram is A Palindrome
A string is a palindrome if it has exactly the same sequence of characters when traversed left-to-right as right-to-left. For example, the following s...
分类:其他好文   时间:2015-01-04 06:23:36    阅读次数:230
【leetcode】Longest Valid Parentheses
Longest Valid ParenthesesGiven a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substr...
分类:其他好文   时间:2015-01-03 22:20:40    阅读次数:131
leetcode——Valid Palindrome
这题算是简单,但是还是有错到我都不知道为啥错要启动编译器来调试的时候,原来是不知道有个判断字母的函数是isalnum(),于是自己写了个判断字母的函数,第一次没判断数字,就错了,第二次发现发现判断字母时我是判断A~z则是字母,但是A和a之间隔了32个字符,而大写字母只有26个,说明之间还有不是字母的...
分类:其他好文   时间:2015-01-03 19:49:56    阅读次数:190
【leetcode】Restore IP Addresses
Restore IP AddressesGiven a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"255255...
分类:其他好文   时间:2015-01-03 11:49:35    阅读次数:178
Ubuntu 14.10 安装samba服务器
1.安装samba $sudo apt-get install samba 2.编辑配置表 $vi /etc/samba/smb.conf 在最后增加以下SECTION: [ home ] comment = workplace browseable = yes writeable = yes path = /home/ valid users = smb 3.创建sm...
分类:系统相关   时间:2015-01-02 22:29:15    阅读次数:238
[LeetCode]3 Longest Substring Without Repeating Characters
https://oj.leetcode.com/problems/longest-substring-without-repeating-characters/http://fisherlei.blogspot.com/2012/12/leetcode-longest-substring-without.htmlpublicclassSolution{ publicintlengthOfLongestSubstring(Strings){ if(s==null||s.isEmpty()) return0;/..
分类:其他好文   时间:2015-01-02 16:16:01    阅读次数:119
[LeetCode]20 Valid Parentheses
https://oj.leetcode.com/problems/valid-parentheses/http://fisherlei.blogspot.com/2013/01/leetcode-valid-parentheses.htmlpublicclassSolution{ publicbooleanisValid(Strings) { if(s==null) returntrue; Stack<Character>stack=newStack<>(); for(charc:s..
分类:其他好文   时间:2015-01-02 16:12:14    阅读次数:99
【leetcode】Restore IP Addresses (middle)
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:2015-01-02 13:24:09    阅读次数:185
[leetcode] Word Break2
题目:(DP, Backtracing)Given a stringsand a dictionary of wordsdict, add spaces insto construct a sentence where each word is a valid dictionary word.Ret...
分类:其他好文   时间:2015-01-02 06:23:46    阅读次数:122
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