[프로그래머스/C++] 올바른 괄호

올바른 괄호

#include<string>

using namespace std;

bool solution(string s)
{
    bool answer = true;
    int now = 0;
    for(auto ele : s){
        if(ele == '(')  now++;
        else if(ele == ')') now--;
        if(now<0)   return false;
    }
    if(now!=0)  answer = false;
    return answer;
}