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  1. #include <iostream>
  2. #include <cstdint>
  3.  
  4. #include <x86intrin.h>
  5.  
  6. inline std::size_t ktoryBitHeHe(std::uint32_t value) {
  7.   if (value > 0) {
  8.   	return _bit_scan_reverse(value) + 1;
  9.   }	else {
  10.   	return 0;
  11.   }
  12. }
  13.  
  14. int main() {
  15.   std::cout << ktoryBitHeHe(15) << ktoryBitHeHe(64);
  16. }
Success #stdin #stdout 0s 3456KB
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https://ideone.com/Cgh0r9
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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