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  1. #pragma GCC optimize("Ofast")
  2. #pragma GCC target("abm")
  3. #include <bits/stdc++.h>
  4.  
  5. using namespace std;
  6.  
  7. int main() {
  8.     cout << __lg(1) << endl;
  9.     volatile int i = 1;
  10.     do {
  11.         cout << __lg(i) << endl;
  12.         ++i;
  13.     } while (i <= 1);
  14. }
Success #stdin #stdout 0s 4240KB
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stdin 
Standard input is empty
stdout 
0
31
https://ideone.com/Oss7F8
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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