How is this so easy? C++solution-did I do this in the right way?


  • 5
    1
    class Solution {
    public:
        double myPow(double x, int n) {
            if(n==0||x==1) return 1;
            if(n==-2147483648) return (double)1/(x*myPow(x,2147483647));
            if(n<0) return (double)1/myPow(x,0-n);
            if(n%2==0) return myPow(x*x,n/2);
            return x* myPow(x,n-1);
        }
    };

  • -2
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