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  1. # your code goes here
  2. n=int(input())
  3. a=list(map(int, input().split()))
  4. p=[0]*n
  5. p[0]=a[0]
  6. for i in range(1, n):
  7.     p[i]=p[i-1]+a[i]
  8. Q=int(input())
  9. for _ in range(Q):
  10.     l, r=map(int, input().split())
  11.     if l==0:
  12.         total=p[r]
  13.     else:
  14.         total=p[r]-p[l-1]
  15.     print(total)
Success #stdin #stdout 0.07s 14104KB
comments (?)
stdin 
5
10 20 30 40 50
4
0 2
1 4
2 2
3 4
stdout 
60
140
30
90
https://ideone.com/edwMmE
language:
Python 3 (python  3.12)
created:
8 days ago
visibility:
public

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