box

First program12

Objective

Write a program that draws the frame of a rectangle whose width and height are given as its two arguments, one row per line.

Steps

Read the width from argv[1] and the height from argv[2], both parsed with atoi.
The four corners are +. Between them the top and bottom rows use -, and the left and right columns use |.
Fill everything inside the frame with spaces. Every row ends with a newline.
A cell that sits on a border row and a border column at once is a corner, so a 2 by 2 box is four +.
A width or a height of 1 collapses the two opposite edges into one, so a 1 by 1 box is a single + and a 4 by 1 box is +--+.
If the width or the height is zero or negative, print nothing at all.
An argument that is not a number reads as zero, so it prints nothing either.
If the program does not receive exactly two arguments, print wrong number of arguments followed by a newline.

examples

$ ./box 6 4 | cat -e

+----+$ | |$ | |$ +----+$

$ ./box 4 1 | cat -e

+--+$

$ ./box 2 2 | cat -e

++$ ++$

$ ./box 1 1 | cat -e

$ ./box 3 | cat -e

wrong number of arguments$

Constraints

Expected files

box.c

Allowed functions

atoiwrite

Tests

Run the tests to grade your code

Build

01No arguments

02Only one argument

03Three arguments

043 by 3 box

056 by 4 box fills the inside with spaces

0610 by 5 box

07Height of two has no interior row

08Width of two has no interior column

092 by 2 box is four corners

101 by 1 box is a single plus

11Height of one gives a single row

12Width of one gives a single column

13Width of zero prints nothing

14Height of zero prints nothing

15Both dimensions zero prints nothing

16Negative width prints nothing

17Negative height prints nothing

18Non-numeric width prints nothing

19Non-numeric height prints nothing

box

Objective

Write a program that draws the frame of a rectangle whose width and height are given as its two arguments, one row per line.

Steps

Read the width from argv[1] and the height from argv[2], both parsed with atoi.
The four corners are +. Between them the top and bottom rows use -, and the left and right columns use |.
Fill everything inside the frame with spaces. Every row ends with a newline.
A cell that sits on a border row and a border column at once is a corner, so a 2 by 2 box is four +.
A width or a height of 1 collapses the two opposite edges into one, so a 1 by 1 box is a single + and a 4 by 1 box is +--+.
If the width or the height is zero or negative, print nothing at all.
An argument that is not a number reads as zero, so it prints nothing either.
If the program does not receive exactly two arguments, print wrong number of arguments followed by a newline.

examples

$ ./box 6 4 | cat -e

+----+$ | |$ | |$ +----+$

$ ./box 4 1 | cat -e

+--+$

$ ./box 2 2 | cat -e

++$ ++$

$ ./box 1 1 | cat -e

$ ./box 3 | cat -e

wrong number of arguments$

Constraints

Expected files

box.c

Allowed functions

atoiwrite

box

First program12

Objective

Write a program that draws the frame of a rectangle whose width and height are given as its two arguments, one row per line.

Steps

Read the width from argv[1] and the height from argv[2], both parsed with atoi.
The four corners are +. Between them the top and bottom rows use -, and the left and right columns use |.
Fill everything inside the frame with spaces. Every row ends with a newline.
A cell that sits on a border row and a border column at once is a corner, so a 2 by 2 box is four +.
A width or a height of 1 collapses the two opposite edges into one, so a 1 by 1 box is a single + and a 4 by 1 box is +--+.
If the width or the height is zero or negative, print nothing at all.
An argument that is not a number reads as zero, so it prints nothing either.
If the program does not receive exactly two arguments, print wrong number of arguments followed by a newline.

examples

$ ./box 6 4 | cat -e

+----+$ | |$ | |$ +----+$

$ ./box 4 1 | cat -e

+--+$

$ ./box 2 2 | cat -e

++$ ++$

$ ./box 1 1 | cat -e

$ ./box 3 | cat -e

wrong number of arguments$

Constraints

Expected files

box.c

Allowed functions

atoiwrite

Tests

Run the tests to grade your code

Build

01No arguments

02Only one argument

03Three arguments

043 by 3 box

056 by 4 box fills the inside with spaces

0610 by 5 box

07Height of two has no interior row

08Width of two has no interior column

092 by 2 box is four corners

101 by 1 box is a single plus

11Height of one gives a single row

12Width of one gives a single column

13Width of zero prints nothing

14Height of zero prints nothing

15Both dimensions zero prints nothing

16Negative width prints nothing

17Negative height prints nothing

18Non-numeric width prints nothing

19Non-numeric height prints nothing