Zero para cancelar

Solution by Mr.Olimpia — 100 pts

Code / Notes

#include <bits/stdc++.h>
using namespace std;

/*int dig(int N) {
    int ans = 1;
    while (N > 10) {
        N /= 10;
        ans++;
    }
    return ans;
}*/

int main() {
    int N;
    cin >> N;

    // vector<int> v; -> {}

    // vector<int> v(N, 0); -> {0, 0, 0, 0, 0, 0}
    // v[i] = 3 -> {0, 0, 3, 0, 0, 0};
    // v.push_back(3) -> {0, 0, 0, 0, 0, 0, 3};
    // v.pop_back() -> {0, 0, 0, 0, 0};
    vector<int> v;
    for(int i=0; i<N; i++){
        int x;
        cin >> x;
        if(x==0){
            v.pop_back();
        }
        else{
            v.push_back(x);
        }
        // Escreve o v inteiro
    }
    int ans=0;
    for(int i=0; i<v.size(); i++){
        ans=ans + v[i];
    }
    cout << ans;
}

Last updated 2 weeks, 3 days ago

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