Envío 4129

Código

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

void solve(vector<int> totals, int start, int end)
{	
	int sum = totals[end];
	if (start > 0)
	{
		sum -= totals[start - 1];
	}
	cout << sum << "\n";
}

int main(int argc, char const *argv[])
{
	int n, sum = 0, start, end;
	cin >> n;

	vector<int> data(n);
	vector<int> totals(n);
	/*get data of array */
	for (size_t i = 0; i < n; i++)
	{
		cin >> data[i];
		sum += data[i];
		totals[i] = sum;
	}

	/*  get n subarrays */
	cin >> n;
	for (size_t i = 0; i < n; i++)
	{
		/* get subarray index start, end*/
		cin >> start >> end;
		solve(totals, start, end);
	}
	return (EXIT_SUCCESS);
}