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  1. A = [0 , 1 , 0 , 3 , 2 , 1 , 2] 
  2. B = [25 , 10 , 15 , 10 , 5 , 30 , 50]
  3.  
  4. sums = {}
  5. for key, value in zip(A,B):
  6.     try:
  7.         sums[key] += value
  8.     except KeyError:
  9.         sums[key] = value
  10. print(sums)
Success #stdin #stdout 0s 9992KB
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Standard input is empty
stdout
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{0: 40, 1: 40, 2: 55, 3: 10}
https://ideone.com/OxbT5s
language:
Python 3 (python  3.9.5)
created:
7 years ago
visibility:
public

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