/* Name: Andrew Charles Breiner
 * Homework 1
 * Chapter 2, Page 92, Program 9
 * Input yard and house demensions and comput time needed to
 * mow the yard
 */

#include <stdio.h> /* printf, scanf definitions */
#define MOW 2.0; /* Mowing speed */

int main(void) {
    double ylen, ywid, hlen, hwid; /* declares as type double */
    double yar, har, time; /* declares as type double */

    /* Asks user for yard and house width and lengh */
    printf("Enter the length and width of the yard: ");
    scanf("%lf%lf", &ylen, &ywid);
    printf("Enter the length and width of the house: ");
    scanf("%lf%lf", &hlen, &hwid);

    /* Compute area of yard/house and compute time needed to mow */
    yar = ylen * ywid;
    har = hlen * hwid;
    time = (yar - har) / MOW;

    /* Output time needed to mow */
    printf("The time needed to cute the grass is %.2f seconds.\n", time);

    return 0;
} //main