View Code of Problem 3913

#include<iostream>
#include<stack>
#include<string>
using namespace std;
int main(){
	int T;
	cin>>T;
	while(T--){
		string str;
		bool flag=true;
		cin>>str;
		stack<char>s;
		for(int i=0;i<str.size();i++){
			if(str[i]=='('){
				s.push(str[i]);
			}
			else{
				if(!s.empty()){
					s.pop();
				}
				else{
					s.push(str[i]);
					flag=false;
					break;
				}
			}
		}
		if(!s.empty()){
			flag=false;
		}
		else{
			flag=true;
		}
		if(flag){
			cout<<"Yes"<<endl;
		}
		else{
			cout<<"No"<<endl;
		}
	}
}

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