Finding k'th root of a number

The need:
    The need is nothing but to find k'th root of a number.
The code:
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#include<stdio.h>
#include<math.h>
main()
{
    printf ("*********a program to find k'th root of x ....\n\n");
    char c;
    float i,j,k,m;
    do
    {
    printf ("To get k'th root of x ....\n");
    printf ("type the values .....\n\n");
    printf ("x= "); 
    scanf("%f",&i);
    printf ("k=  ");
    scanf("%f",&k);
    j=pow(i,(1/k));
    printf("\n %dth root of%f = %f\n\n\n",(int)k,i,j);
    printf("do you want to try more? y/n \t");
    fflush(stdin);
    c=getchar();
    }while(c=='y');
}

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The Approach:
     The approach is very simple. Lets apply simple math
If y^k = x
then y =  x^(1/k)
and the problem is solved because we have built-in pow() function for a power.