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  1. pref = [0]
  2. _ = input()
  3. for liczba in map(int, input().split()):
  4. 	pref.append(pref[-1]+liczba)
  5. print(pref)
  6. test = int(input())
  7. for i in range(test):
  8. 	a,b = map(int, input().split())
  9. 	print(pref[b]-pref[a-1])
  10.  
Success #stdin #stdout 0.02s 9784KB
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stdin
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5
2 3 7 8 1
2
2 4
1 5
stdout
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[0, 2, 5, 12, 20, 21]
18
21
https://ideone.com/tL1wuP
language:
Python 3 (python  3.9.5)
created:
3 days ago
visibility:
public

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