Leetcode Valid Parentheses
来源：互联网 发布：淘宝整点秒杀优惠券 编辑：程序博客网 时间：2024/05/22 08:06
题意：括号匹配。
思路：堆栈。
class Solution {public: bool isValid(string s) { stack <char> mys; mys.push(s[0]); for(unsigned i = 1; i < s.length(); ++ i) { if(!mys.empty()) { char temp = mys.top(); if(temp == '(' && s[i] == ')') { mys.pop(); continue; } if(temp == '[' && s[i] == ']') { mys.pop(); continue; } if(temp == '{' && s[i] == '}') { mys.pop(); continue; } } if(s[i] == '(' || s[i] == '{' || s[i] == '[') { mys.push(s[i]); continue; } else return false; } if(mys.empty()) return true; else return false; }}; 0 0
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