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LeetCode32 Longest Valid Parentheses
题目: Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", th ...
分类:其他好文   时间:2016-08-22 21:47:24    阅读次数:146
给定序列,求这个序列的出栈次序
比如1,2,3 的出栈次序可以是{1,2,3}{2,1,3}{2,3,1}{1,3,2}{3,2,1}5种。 其实这个 和leetcode生成括号那个题目很像。题目链接https://leetcode.com/problems/generate-parentheses/ 题解 http://www. ...
分类:其他好文   时间:2016-08-20 16:19:14    阅读次数:171
32. Longest Valid Parentheses
32. Longest Valid Parentheses Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parenthese ...
分类:其他好文   时间:2016-08-17 06:47:22    阅读次数:143
LeetCode22 Generate Parentheses
题意: iven n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is ...
分类:其他好文   时间:2016-08-13 22:28:31    阅读次数:196
Generate Parentheses
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: 这 ...
分类:其他好文   时间:2016-08-12 14:52:51    阅读次数:114
Leetcode 241. Different Ways to Add Parentheses
241. Different Ways to Add Parentheses 241. Different Ways to Add Parentheses Total Accepted: 27446 Total Submissions: 72350 Difficulty: Medium Given ...
分类:其他好文   时间:2016-08-11 10:02:58    阅读次数:172
leetCode 20. Valid Parentheses 字符串
20.ValidParenthesesGivenastringcontainingjustthecharacters‘(‘,‘)‘,‘{‘,‘}‘,‘[‘and‘]‘,determineiftheinputstringisvalid.Thebracketsmustcloseinthecorrectorder,"()"and"()[]{}"areallvalidbut"(]"and"([)]"arenot.题目大意:括号匹配问题。思路:采用压栈出栈来处理。cla..
分类:其他好文   时间:2016-08-11 07:29:29    阅读次数:131
LeetCode20 Valid Parentheses
题意: Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in ...
分类:其他好文   时间:2016-08-10 22:17:33    阅读次数:135
Generate Parentheses
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: A ...
分类:其他好文   时间:2016-08-10 00:53:11    阅读次数:131
leetcode 32. Longest Valid Parentheses
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the lo ...
分类:其他好文   时间:2016-08-05 13:37:00    阅读次数:103
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