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  1. #include <iostream>
  2. #include <algorithm>
  3.  
  4. int main() {
  5.     int a, b, c;
  6.     std::cin >> a >> b >> c;
  7.  
  8.     int arr[3] = {a, b, c};
  9.     std::sort(arr, arr + 3);
  10.  
  11.     int trepte_libere = (arr[1] - arr[0] - 1) + (arr[2] - arr[1] - 1);
  12.  
  13.     std::cout << trepte_libere << std::endl;
  14.     return 0;
  15. }
  16.  
Success #stdin #stdout 0.01s 5316KB
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10 10  11
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-1
https://ideone.com/14BX3B
language:
C++ 4.3.2 (gcc-4.3.2)
created:
3 days ago
visibility:
public

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