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/*/*******************************************************************************
** **
** Jiedi(China nanjing)Ltd. **
** **
*******************************************************************************/
/*****************************FILE INFOMATION***********************************
**
** Project : ---leetcode
** Contact : xiacaojun@qq.com
** : http://blog.csdn.net/jiedichina
** : http://study.163.com/u/xiacaojun
https://jiedi.ke.qq.com/
csdn https://edu.csdn.net/course/detail/25037
** 51cto http://edu.51cto.com/lecturer/index/user_id-100013755.html
** http://www.laoxiaketang.com
**
** ---leetcode 296249312
** : jiedi2007
** :
**
*****************************************************************************
// 算法设计与编程实践---基于leetcode的企业真题库 课程 QQ群296249312 下载代码和交流*/
/*
* @lc app=leetcode.cn id=20 lang=cpp
*'('')''{''}''['']'
* [20]
*/
#include <string>
#include <stack>
using namespace std;
class Solution {
public:
bool isValid(string s) {
stack<char> tempStack;
for(char& c: s){
switch(c){
case '(':
case '{':
case '[': tempStack.push(c);break;
case ')':
if(tempStack.empty() || tempStack.top() !='(')
return false;
else
tempStack.pop();break;
case '}':
if(tempStack.empty() || tempStack.top() !='{')
return false;
else
tempStack.pop();break;
case ']':
if(tempStack.empty() || tempStack.top() !='[')
return false;
else
tempStack.pop();break;
}
}
return tempStack.empty();
}
};