Envío 946

Código

n = int(input())
numbers = list(map(int, input().split()))
assert(n == len(numbers))
c = int(input())
queries = [list(map(int, input().split())) for i in range(c)]
accumulated_sum = []
sum = 0
for number in numbers:
    sum += number
    accumulated_sum.append(sum)

def sub_array_sum(p, q):
    assert(p <= q)
    assert(q <= len(accumulated_sum))
    if p == 0:
        return (accumulated_sum[q])
    return(accumulated_sum[q] - accumulated_sum[p - 1])


for query in queries:
    p, q = query
    print(sub_array_sum(p, q))