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  1. #pragma GCC optimize("Ofast")
  2. #include <bits/stdc++.h>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7.     cout << __lg(1) << endl;
  8.     volatile int i = 1;
  9.     do {
  10.         cout << __lg(i) << endl;
  11.         ++i;
  12.     } while (i <= 1);
  13. }
Success #stdin #stdout 0s 4512KB
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https://ideone.com/naZ07p
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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