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  1. import sys;input=sys.stdin.readline
  2. n=int(input())
  3. s=0
  4. d=sorted([int(input())for _ in range(n)])
  5. for i in range(n,0,-1):
  6. 	s+=max(0,d[i-1]-i+1)
  7. print(s)
Success #stdin #stdout 0.03s 9280KB
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https://ideone.com/CHi5Wy
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
public

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