Envío 524

Código

n = int(input())
numbers = list(map(int, input().split()))
c = int(input())

queries = []
for _ in range(c):
    query = list(map(int, input().split()))
    assert(0 <= query[0] <= n - 1)
    assert(0 <= query[1] <= n - 1)
    assert(query[0] <= query[1])
    queries.append(query)

current_sum = 0
sum_numbers = []
for number in numbers:
    current_sum = current_sum + number
    sum_numbers.append(current_sum)

for query in queries:
    p, q = query
    if p == 0:
        print(sum_numbers[q])
    else:
        print(sum_numbers[q] - sum_numbers[p - 1])