Power of Two

class Solution {
public:
    bool isPowerOfTwo(int n) {
        int temp;
        if(n==0)
            return false;
        if(n==1)
            return true;
        else 
        {
            while(temp!=1)
            {
                temp=n/2;
                if(temp*2!=n)
                    return false;
                n/=2;
            }
            return true;
        }
    }
};