Envío 4827

Código

def solve(sum, p, q):
  s = sum[q]
  if p - 1 >= 0:
    s -= sum[p-1]
  print(s)


def main():
  num_elements = int(input())
  elements = list(map(int, input().split(" ")))

  sum = [elements[0]]
  for i in range(1, len(elements)):
    sum.append(sum[i-1] + elements[i])

  num_queries = int(input())
  for _ in range(0, num_queries):
    p, q = list(map(int,input().split()))
    solve(sum, p, q)

if __name__ == "__main__":
  main()