Envío 2214

Código

#include <iostream>
#include <vector>
using namespace std;

int main()
{
    int tam, a, b, query, cont;
    vector <int> numbers;
    cin >> tam;
    while( tam-- ){
        cin >> a;
        numbers.push_back(a);
    }

    cin >> query;
    while ( query-- ){
        cin >> a >> b;
        cont=0;
        for(int i=a;i<=b;i++){
            cont += numbers[i];
        }
        cout << cont << endl;
    }
    return 0;
}