cpp) 백준 10773: 제로

Problem

https://www.acmicpc.net/problem/10773

10773번: 제로

 

 

Solution

#include<iostream>
#include<vector>

using namespace std;

int main(){
    ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);

    int sum = 0;
    int k;
    cin >> k;

    vector<int> v;
    
    for(int i=0;i<k;i++){
        int n;
        cin >> n;

        if(n==0){
            v.pop_back();
        } else {
            v.push_back(n);
        }
    }

    for(int j=0;j<v.size();j++){
        sum += v[j];
    }

    cout << sum << '\n';

    return 0; 
}