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knakul853
Jul 19th, 2020
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  1. class Solution {
  2. public:
  3.     bool isPowerOfTwo(int n) {
  4.        
  5.         if(n <=0) return false;
  6.        
  7.         return (n & (n-1)) == 0;
  8.        
  9.     }
  10. };
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