The program allows the user to calculate the cost of installing tiles in a room. It takes input for the tile size, room length, and room width from the user. It then calculates the room size in square meters and number of tiles required based on the tile size selected. Finally, it displays an invoice with the product number, room size, number of tiles, cost per tile, and total cost. The program runs without errors and outputs the results as specified.

1. UNIVERSITI TUN HUSSEIN ONN MALAYSIA
FACULTY OF MECHANICAL AND MANUFACTURING ENGINEERING
BTI 10202: COMPUTER PROGRAMMING
TEST 1
NAME : _____________________________________ MARKS
MATRICS NO.: _______________ DATE : ________
Write a program to calculate cost of installing tiles in a room. Calculation should be in Meter Square (m2).
The user may choose from two different tile sizes:
20 cm x 20 20 cm x 10
cm cm
RM3.00
The output should be similar to:
Please save your file on desktop as <matrixcard>_<yourname>.c

2. Answer:
#include<stdio.h>
#include<conio.h>
main(){
float lb, wb,roomsize=0,ttile=0,cost=0,unit; 3m
int tile;
reenter:
printf("nt***Tile Calculator(Metric) And Invoice generator***nn1. 20cm x 20cmn2. 20cm x
10cmnPlease choose your tile size: ");
scanf("%d",&tile);
2m
if(tile!=1 && tile!=2) {goto reenter;}
printf("nPlease enter room length(m): "); I/p 1m
scanf("%f",&lb);
printf("nPlease enter room width(m): ");
scanf("%f",&wb);
roomsize=lb*wb; 1m
switch(tile){
case 1:
unit=3.0;
ttile=roomsize/4;
cost=ttile*unit;break;
case 2: 2m
unit=2.0;
ttile=roomsize/2 ;
cost=ttile*unit;break;
}
printf("nnttt****INVOICE****n");
printf("nProduct No.tRoom SizetNo.Tile tCost/tiletTotal"); O/p1m
printf("n-----------------------------------------------------------------------");
printf("nt%dt%7.2ftt%6.1fttRM%6.2ftRM%6.2f",tile,roomsize,ttile,unit,cost);
Run w/o error 3m
2m??
getch();
}