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  1. #include <stdio.h>
  2. int main(){
  3.     int n;
  4.     printf("enter a number");
  5.     scanf("%d",&n);
  6.     if(n>0&&(n&(n-1))==0){
  7.         printf("power of 2");
  8.     }else{
  9.         printf("not power of 2");
  10.     }
  11.     return 0;
  12. }
Success #stdin #stdout 0s 5304KB
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45
stdout
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enter a numbernot power of 2
https://ideone.com/7IX52n
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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