pyramid

Your mission

Write a program that draws a centered pyramid of # characters whose height is given as the single argument.

See it in action

./pyramid 3 | cat -e

Expected result

  #$
 ###$
#####$

Your checklist

For your own tracking. Tests grade your code.

Read the height from argv[1] and parse it with atoi.
Print one row per line. Row i, counting from 1, has n - i leading spaces followed by 2 * i - 1 # characters, then a newline.
If the height is zero or negative, print nothing.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline.

More examples

./pyramid 1 | cat -e

Expected result

#$

./pyramid | cat -e

Expected result

wrong number of arguments$

Constraints

Expected files

pyramid.c

Allowed functions

atoiwrite

pyramid

Conditions and loops

Your mission

Write a program that draws a centered pyramid of # characters whose height is given as the single argument.

See it in action

./pyramid 3 | cat -e

Expected result

  #$
 ###$
#####$

Your checklist

For your own tracking. Tests grade your code.

Read the height from argv[1] and parse it with atoi.
Print one row per line. Row i, counting from 1, has n - i leading spaces followed by 2 * i - 1 # characters, then a newline.
If the height is zero or negative, print nothing.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline.

More examples

./pyramid 1 | cat -e

Expected result

#$

./pyramid | cat -e

Expected result

wrong number of arguments$

Constraints

Expected files

pyramid.c

Allowed functions

atoiwrite

Tests

Run the tests to grade your code

Build your code, then check each test here. Open a result to inspect its output.

Build

01No argumentsWaiting

02Too many argumentsWaiting

03Height of oneWaiting

04Height of threeWaiting

05Height of fiveWaiting

06Height of zero prints nothingWaiting

07Negative height prints nothingWaiting

08Non-numeric height prints nothingWaiting

pyramid

Your mission

Write a program that draws a centered pyramid of # characters whose height is given as the single argument.

See it in action

./pyramid 3 | cat -e

Expected result

  #$
 ###$
#####$

Your checklist

For your own tracking. Tests grade your code.

Read the height from argv[1] and parse it with atoi.
Print one row per line. Row i, counting from 1, has n - i leading spaces followed by 2 * i - 1 # characters, then a newline.
If the height is zero or negative, print nothing.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline.

More examples

./pyramid 1 | cat -e

Expected result

#$

./pyramid | cat -e

Expected result

wrong number of arguments$

Constraints

Expected files

pyramid.c

Allowed functions

atoiwrite

pyramid

Conditions and loops

Your mission

Write a program that draws a centered pyramid of # characters whose height is given as the single argument.

See it in action

./pyramid 3 | cat -e

Expected result

  #$
 ###$
#####$

Your checklist

For your own tracking. Tests grade your code.

Read the height from argv[1] and parse it with atoi.
Print one row per line. Row i, counting from 1, has n - i leading spaces followed by 2 * i - 1 # characters, then a newline.
If the height is zero or negative, print nothing.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline.

More examples

./pyramid 1 | cat -e

Expected result

#$

./pyramid | cat -e

Expected result

wrong number of arguments$

Constraints

Expected files

pyramid.c

Allowed functions

atoiwrite

Tests

Run the tests to grade your code

Build your code, then check each test here. Open a result to inspect its output.

Build

01No argumentsWaiting

02Too many argumentsWaiting

03Height of oneWaiting

04Height of threeWaiting

05Height of fiveWaiting

06Height of zero prints nothingWaiting

07Negative height prints nothingWaiting

08Non-numeric height prints nothingWaiting