47)write aprogram to evaluate the square cube and 4th power of a number

#include<iostream>
#include<cmath>
using namespace std;
int main()
{   int k;
    int x2,y3,z4;
   cout<<"enter the value of k"<<endl;
   cin>>k;
   x2=k*k;
   y3=x2*k;
   z4=y3*k;
   cout<<"the square  of k is "<<x2<<endl<<"the 3rd power of k is"<<y3<<endl<<"the 4th power of k is"<<z4;
   int i;
    cin>>i;
    return 0;
}