Prototype in C programming

Question

Write a prototype of a function 'Calculate' which takes three arguments (2 int and 1 float) and returns a float value.

Answer 1

Complete code in C Programming:

#include <stdio.h>

/* function prototype */
float Calculate(int num1, int num2, float num3);

/* main function */
int main() {
    int num1, num2;
    float num3, result;
    
    /* take user input for num1, num2, and num3 */
    printf("Enter two integer numbers: ");
    scanf("%d%d", &num1, &num2);
    printf("Enter a float number: ");
    scanf("%f", &num3);
    
    /* call the Calculate function and store the result */
    result = Calculate(num1, num2, num3);
    
    /* print the result */
    printf("Result = %.2f\n", result);
    
    return 0;
}

/* function definition */
float Calculate(int num1, int num2, float num3) {
    float result;
    /* your calculation logic here */
    result = num1 * num2 * num3;  /* example calculation: multiplying all three numbers */
    return result;
}