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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int getMinOperations(long long n) {
  5.     int count = 0;
  6.     while (n > 0) {
  7.         long long x = ceil(log2((long double)n));
  8.         long long y = floor(log2((long double)n));
  9.  
  10.         long long ans1 = 1LL << x;
  11.         long long ans2 = 1LL << y;
  12.  
  13.         n = min(abs(n - ans1), abs(n - ans2));
  14.         count++;
  15.     }
  16.     return count;
  17. }
  18.  
  19. int main() {
  20.     long long n;
  21.     if (cin >> n) {
  22.         cout << getMinOperations(n) << endl;
  23.     }
  24.     return 0;
  25. }
Success #stdin #stdout 0s 5320KB
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https://ideone.com/w9y40H
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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