[Solved] Power of two failed to pass the test

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Are you sure that you are checking power of 2? Rather, being checked divisible with 2. If you are serious, use the piece of cake snippet

return n > 0 && ((n & -n) == n);

The second way,

enter image description here

private static boolean powerOf2(int num)
{
  if(num <= 0){
   return false;
  }

  while(num > 1)
  {
   if(num % 2 != 0)
   {
    return false;
   }
   num = num / 2;
  }
  return true;
}

2

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solved Power of two failed to pass the test