$($Deliverable $1$:$20\%)$ Create the $C$ code of the following program. The program first prompts

the user to enter an integer length of a rectangle, and then prompts the user to enter an

integer width of the rectangle, and finally prints the length and width that the user has

entered. Build and run the program. The execution of the program may look like below, Run

the program twice with different user inputs, take screen shots of your program's execution

results and save them together with the $C$ code in a PDF file.

Please enter the length of the rectangle in centimeter $($integer only$)$

$25$

Please enter the width of the rectangle in centimeter $($integer only$)$

$4$

Ah$,$ the length and width of the rectangle are respectively $25$ cm and $4$ cm

$($Deliverable $2$:$10\%)$ Copy your C code in Step $2$ to a new file and then modify the new file

so that the program only prompts the user once, asking for both length and width $($both

integers$)$ in centimetre, and then prints the length and width that the user has entered. Build

the program. Run the program twice with different user inputs, take screen shots of your

program's execution results and save them together with the $C$ code in a PDF file. Submit

the PDF file.

$($Deliverable $3$: $20\%)$ Create the C code of a program that performs the same task as that in

Step $3$ except that the variables representing length and width must have type float. Build

the program. Run the program twice with different user inputs, take screen shots of your

program's execution results and save them together with the C code in a PDF file. Submit

the PDF file.

$($Deliverable $4$: $20\%)$ Revise the code in Step $4$ by making the variables representing length

and width have type double. Build the program. Run the program twice with different user

inputs, take screen shots of your program's execution results and save them together with

the $C$ code in a PDF file. Submit the PDF file.

$($Deliverable $5$: $10\%)$ Revise the code in Step $5$ so that the program prints one extra line at

the end, indicating the area of the rectangle. Run the program twice with different user

inputs, take screen shots of your program's execution results and save them together with

the $C$ code in a PDF file. Submit the PDF file.