lc 231 Power of Two

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231 Power of Two

Given an integer, write a function to determine if it is a power of two.

analysation##

Easy problem.

solution

bool isPowerOfTwo(int n) {

  if (n <= 0)

  return false;

  while (n%2 == 0)

  n = n>>1;

  return (n == 1);

}