Code
// Input principal amount, time and rate-of-interest and calculate the simple interest and compound interest
#include <stdio.h>
#include <math.h>
int main()
{
float principal, time, roi, si, ci;
printf("Enter The Principal Amount, Time In Years, Rate Of Interest: \n");
scanf("%f%f%f", &principal, &time, &roi);
si = (principal * time * roi) / 100;
ci = (principal * pow((1 + roi / 100), time)) - principal;
printf("Simple Interest: %.2f\nCompound Interest: %.2f", si, ci);
return 0;
}
Output
Enter The Principal Amount, Time In Years, Rate Of Interest: 10000 5 12 Simple Interest: 6000.00 Compound Interest: 7623.42