1068 - URI - Balanço de Parênteses I

#include <bits/stdc++.h>

#define forn(l, r) for(int i = l; i < (r); ++i)
#define forj(l, r) for(int j = l; j < (r); ++j)
#define TAM 1000100
#define SYNC ios::sync_with_stdio(0);
#define $ << ' ' <<
#define F first
#define S second
#define endl '\n'


using namespace std;

using ll = long long int;
using ii = pair<int, int>;
using vii = vector<ii>;
using vi = vector<int>;
using graph = vector<vi>;
const int INF = 0x3f3f3f3f;
const int MAXN = 112345;
const ll mod = 1000000007;


int main() {
    //SYNC
    string s;
    int total;
    vector<char> pts;
    vector<string> ans;
    stack<char> pilha;
    while(cin >> s) {
        total = 0;
        pts.clear();
        for (auto i : s) {
            if (i == '(' || i == ')') {
                pts.push_back(i);
            }
        }

        for (auto i : pts) {
            if (i == ')') total--;
            else total++;
            if (total < 0) break;
        }
        if (!total) ans.push_back("correct");
        else ans.push_back("incorrect");
    }
    for (auto i : ans) {
        cout << i << endl;
    }
    return 0;
}