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  1. r = list()
  2. n = int(input())
  3. for i in range(n):
  4. 	x = int(input())
  5. 	if(x<=2):
  6. 		r.append(0)
  7. 	else:
  8. 		r.append((x-1)//2)
  9.  
  10. for it in r:
  11. 	print(it)
  12.  
  13.  
Success #stdin #stdout 0.02s 9400KB
comments (?)
stdin
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6
7
1
2
3
2000000000
763243547
stdout
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3
0
0
1
999999999
381621773
https://ideone.com/jkx5kS
language:
Python 3 (python  3.9.5)
created:
2 years ago
visibility:
public

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