This problem is a nice extension of the Valid Parentheses problem.There are several ways to solve it. The first idea is also to use a stack. However, ...
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其他好文 时间:
2015-06-13 16:56:41
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130
Givennpairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, givenn= 3, a solution set is:"((()))...
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其他好文 时间:
2015-06-13 01:09:41
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158
题目链接 题目要求: Given a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substring. For...
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其他好文 时间:
2015-06-12 23:52:34
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120
Implement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), the plus+or minus...
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其他好文 时间:
2015-06-10 06:33:42
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108
Basic CalculatorImplement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), t...
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编程语言 时间:
2015-06-10 00:50:16
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399
Basic CalculatorImplement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), t...
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其他好文 时间:
2015-06-09 16:40:54
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115
https://leetcode.com/problems/valid-parentheses/原题:Given a string containing just the characters'(',')','{','}','['and']', determine if the input stri...
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其他好文 时间:
2015-06-07 17:05:11
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97
Generate Parentheses
题目:
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:
“((()))”, “(()(...
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其他好文 时间:
2015-06-06 23:33:17
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120
为了在运行中避免可能出现的危险,即当string emuStack为空,emuStack.begin()和emuStack.end()是什么。采取的策略是先将emuStack重置为非空,再进行其他操作,这样就永远不可能碰到底部。
#include
#include
using namespace std;
class Solution {
public:
bool isValid(st...
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其他好文 时间:
2015-06-06 09:18:14
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108
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, “()”...
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其他好文 时间:
2015-06-05 14:07:10
阅读次数:
117