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9012.cpp
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38 lines (32 loc) · 620 Bytes
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#include <iostream>
#include <stack>
using namespace std;
bool isCheck(string str){
stack<char> s;
for(int i = 0; i< str.length();i++){
if(str[i]=='('){
s.push(str[i]);
}
else{
if(!s.empty()){
s.pop();
}else{
return false;
}
}
}
return s.empty();
}
int main(){
int x;
cin >> x;
for(int i = 0; i<x;i++){
string str;
cin >> str;
if(isCheck(str)){
cout << "YES" << '\n';
}else{
cout << "NO" << '\n';
}
}
}