Envío 982

Código

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class Main{

	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st;
		int n, p,q, c;
		long A[];
		//st = new StringTokenizer(br.readLine());
		n = Integer.parseInt(br.readLine());
		A = new long[n];
		st = new StringTokenizer(br.readLine());
		A[0] = Long.parseLong(st.nextToken());
		for (int i = 1; i < A.length; i++) {
			A[i] = A[i - 1] + Long.parseLong(st.nextToken());
		}
		//st = new StringTokenizer(br.readLine());
		c = Integer.parseInt(br.readLine());
		for (int i = 0; i < c; i++) {
			st = new StringTokenizer(br.readLine());
			p = Integer.parseInt(st.nextToken());
			q = Integer.parseInt(st.nextToken());
			if (p == 0) {
				System.out.println(A[q]);
			} else {
				System.out.println(A[q] - A[p - 1]);
			}
		}
	}

}