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ÇöÀçÀ§Ä¡ : Code>C>power_of_tow



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is_power_of_two

#include <stdio.h> 
 
int main(int argc, char **argv) 
{ 
  int rtv; 
  printf("%d\n",is_power_of_two(atoi(argv[1]))); 
} 
 
int is_power_of_two(unsigned n) 
{ 
  return ( (n > 0) && !(n & (n - 1)) ); 
} 
 
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