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  1. a = [['REDHEA', 3], ['GADWAL', 1], ['SMEW', 4], ['GRESCA', 10], ['REDHEA', 3], ['GADWAL', 9], ['GRESCA', 15], ['COMEID', 6]]
  2. s = {}
  3. for i in a:
  4.     if i[0] in s:
  5.         s[i[0]] += i[1]
  6.     else:
  7.        s[i[0]] = i[1]
  8. print(s)
Success #stdin #stdout 0.02s 9028KB
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{'REDHEA': 6, 'GADWAL': 10, 'SMEW': 4, 'GRESCA': 25, 'COMEID': 6}
https://ideone.com/GqIbs3
language:
Python 3 (python  3.9.5)
created:
2 years ago
visibility:
secret

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