View Code of Problem 3913

#include <stdio.h>
#include<iostream>
#include<cstdlib>
#include<cstdio>
#include<cstring>
#include<string>
#include<algorithm>
#include<vector>
#include<cmath>
#include<stack>
using namespace std;	
	
int main() {
	int t;
	cin >> t;
	
	while (t--) {
		int flag = 1;
		string str;
		stack<char> cun;
		cin >> str;
		for (int i = 0; i < str.size(); i++) {
			if (str[i] == '(') {
				cun.push('(');
			}
			else {
				if (cun.size()<=0) {
					flag=0;
					break;
				}
				else {
					cun.pop();
					
				}
			}
		}
		if (flag==1&&cun.size()==0) {
			cout << "Yes" << endl;
		}
		else {
			cout << "No" << endl;
		}
		
	}
	return 0;
}