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CSU 1542 Flipping Parentheses(线段树)
给出一个长度为n的已经匹配的括号字符串,然后有Q次操作,每次操作会翻转一个括号,让你翻转最左边的某个括号使得整个字符串再次匹配。...
分类:其他好文   时间:2015-08-18 01:20:27    阅读次数:187
20 Valid Parentheses(匹配括号)
题目意思:判断一个字符串(){}[]是否符合思路:用栈ps:实习一个多月了,代码也刷不动了,状态真不是一般的差class Solution {public: bool isValid(string s) { if(s==""||s.size()%2==1) ...
分类:其他好文   时间:2015-08-17 17:14:37    阅读次数:133
[LeetCode] Different Ways to Add Parentheses
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 ope...
分类:其他好文   时间:2015-08-17 12:02:53    阅读次数:142
[LeetCode]Basic Calculator
Basic CalculatorImplement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), t...
分类:其他好文   时间:2015-08-16 18:15:19    阅读次数:155
[LeetCode] 032. Longest Valid Parentheses (Hard) (C++)
指数:[LeetCode] Leetcode 指标解释 (C++/Java/Python/Sql)Github: https://github.com/illuz/leetcode032. Longest Valid Parentheses (Hard)链接:题目:https://oj.leetco...
分类:编程语言   时间:2015-08-15 19:41:24    阅读次数:116
Generate Parentheses
1. Problem给定n对括号,生成所有可能的括号组合Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, given ...
分类:其他好文   时间:2015-08-10 21:47:01    阅读次数:100
CSU - 1542 Flipping Parentheses (线段树)
CSU - 1542 Flipping Parentheses Time Limit: 5000MS   Memory Limit: 262144KB   64bit IO Format: %lld & %llu Submit Status Description Input...
分类:其他好文   时间:2015-08-09 22:37:16    阅读次数:212
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 correct order, “()” and “()[]{}” are all valid but...
分类:其他好文   时间:2015-08-09 17:11:15    阅读次数:102
[LeetCode]Generate Parentheses
Givennpairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, givenn= 3, a solution set is:"((()))...
分类:其他好文   时间:2015-08-09 01:50:48    阅读次数:140
LeetCode224——Basic Calculator
Implement a basic calculator to evaluate a simple expression string. The expression string may contain open ( and closing parentheses ), the plus + or minus sign -, non-negative integers and em...
分类:其他好文   时间:2015-08-08 15:00:44    阅读次数:91
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