rendered paste body#include <stdio.h>
#include <stdlib.h>
#include <string.h>
main ()
{
int rooms, room_number;
double area, cost, totalcost, lenght, breadth;
char hotel;
FILE * in= fopen("rooms.txt", "r");
FILE * out= fopen("rooms.txt", "w");
if (in == NULL)
{
printf("File cannot be found");
return 1;
}
else
{
printf("File opened successfully.\n");
}
if (out == NULL)
{
printf("File cannot be found or created");
exit(1);
}
fprintf(out, "RoomNumber RoomArea CostToCarpetRoom\n\n");
do {
fscanf(in, "%d %lf %lf %lf", &room_number, &lenght, &breadth, &cost);
area= lenght * breadth;
totalcost= totalcost + cost;
rooms = room_number++;
}while(room_number!=0);
fprintf(out, "%d rooms were processed\n\n", rooms);
fprintf(out, "Total cost of carpeting all the rooms are %lf\n\n", totalcost);
fprintf(out, "Room %d will cost the most to carpet\n\n" );
printf("\n\nNow closing file...\n");
fclose(in);
fclose(out);
return 0;
}