Best program to calculate compound interest

     CODE:-

#include <stdio.h>

int main()

{

    int p,t;

    float i,r,a;

    printf("Enter the principle amount.");

    scanf("%d",&p);

    printf("Enter the rate: ");

    scanf("%f",&r);

    printf("Enter the total time taken: ");

    scanf("%d",&t);

    for(int j=1;j<=t;j++)

    {

        i=p*r/100;

        a=i+p;

        p=a;

        printf("Amount after %d years= %f\n",j,a);

    }

    printf("*******Total amount to paid= %f*******",a);

    return 0;

}