Example: Simple Interest Program in C using For loop

#include <stdio.h>

​

int main() {

    float x = 1, y, SI;

    // `SI` = value of the simple interest

​

    printf("Enter the principal (amount), time, and rate::\n");

​

    for (int count = 1; count <= 3; count++) {

        scanf("%f", &y);

​

        // It will calculate the value of simple interest

        x *= y;

        if (count == 3)

            SI = x/100;

    }

​

    // It will produce the final output

    printf("\nSimple Interest = %.2f\n", SI);

    return 0;

}