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  1. #include<iostream>
  2. using namespace std;
  3.  
  4.  double myPow(double x, int n) {
  5.         if(n==0){
  6.             return 1;
  7.         }else if(n<0){
  8.         	n=(double)1/n;
  9.         	cout<<n;
  10.         	return n;
  11.         }
  12.         double ans=myPow(x,n/2);
  13.         cout<<"hello";
  14.         cout<<n<<" "<<ans;
  15.         ans=ans*ans;
  16.         if(n%2==1){
  17.             ans=ans*x;
  18.         }
  19.         return ans;
  20.     }
  21.  
  22. int main(){
  23. 	double x;
  24.     int n; cin>>x;
  25.     cin>>n;
  26.     double ans=myPow(x,n);
  27.     cout<<ans;
  28.  
  29. }
  30.  
Success #stdin #stdout 0.01s 5424KB
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stdin
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2.00000
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stdout
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00
https://ideone.com/a0lupG
language:
C++14 (gcc 8.3)
created:
42 days ago
visibility:
public

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