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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.     #ifdef VSP4
  7.     freopen("input.txt", "r", stdin);
  8.     freopen("output.txt", "w", stdout);
  9.     #endif // VSP4
  10.  
  11. 	int n, k, i, j, calc, ans;
  12.  
  13. 	cin >> n >> k;
  14.  
  15.     ans = 1e9;
  16.  
  17.     for (j = 2*k; j >= 1; j--)
  18.     {
  19.         i = n - (n % j);
  20.         //cout << i << " " << j << " " << n % j << "\n";
  21.         ans = min(ans, abs(n - i) + abs(k - j));
  22.         i += j;
  23.         //cout << i << " " << j << "\n";
  24.         ans = min(ans, abs(n - i) + abs(k - j));
  25.     }
  26.  
  27.     cout << ans;
  28.  
  29.     return 0;
  30. }
Success #stdin #stdout 0s 3416KB
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https://ideone.com/k7ZoNj
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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