#include #include #include "house.h" int main() { struct house first_house = input_house(); struct house second_house = input_house(); print_house("first house:", first_house); printf("\n\n"); print_house("second house", second_house); int comparison = compare_prices(first_house, second_house); switch(comparison) { case -1: printf("the first house is cheaper\n"); break; case 0: printf("the two houses are equally expensive\n"); break; case 1: printf("the second house is cheaper\n"); break; default: printf("invalid comparison value %d, there must be a bug\n", comparison); break; } free(first_house.street_name); free(second_house.street_name); }