v0.40: Create exercises. Challenge the community.

wide_words

Your mission

Write a program that normalizes one string argument by printing its words separated by exactly three spaces.

See it in action

./wide_words "  ship   small\tpatches " | cat -e

Expected result

ship   small   patches$

Your checklist

For your own tracking. Tests grade your code.

The program expects exactly one argument.
A word is a run of characters that is not a space or a tab.
Skip leading and trailing spaces or tabs from the input.
Print each word in its original order.
Place exactly three spaces between consecutive words.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline. If the input contains no words, print only a newline.
Use only write.

More examples

./wide_words "single" | cat -e

Expected result

single$

./wide_words | cat -e

Expected result

wrong number of arguments$

Constraints

Expected files

wide_words.c

Allowed functions

write

wide_words

Words and tokens

Your mission

Write a program that normalizes one string argument by printing its words separated by exactly three spaces.

See it in action

./wide_words "  ship   small\tpatches " | cat -e

Expected result

ship   small   patches$

Your checklist

For your own tracking. Tests grade your code.

The program expects exactly one argument.
A word is a run of characters that is not a space or a tab.
Skip leading and trailing spaces or tabs from the input.
Print each word in its original order.
Place exactly three spaces between consecutive words.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline. If the input contains no words, print only a newline.
Use only write.

More examples

./wide_words "single" | cat -e

Expected result

single$

./wide_words | cat -e

Expected result

wrong number of arguments$

Constraints

Expected files

wide_words.c

Allowed functions

write

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

02Mixed spaces and tabsWaiting

03Single wordWaiting

04No wordsWaiting

05Too many argumentsWaiting

wide_words

Your mission

Write a program that normalizes one string argument by printing its words separated by exactly three spaces.

See it in action

./wide_words "  ship   small\tpatches " | cat -e

Expected result

ship   small   patches$

Your checklist

For your own tracking. Tests grade your code.

The program expects exactly one argument.
A word is a run of characters that is not a space or a tab.
Skip leading and trailing spaces or tabs from the input.
Print each word in its original order.
Place exactly three spaces between consecutive words.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline. If the input contains no words, print only a newline.
Use only write.

More examples

./wide_words "single" | cat -e

Expected result

single$

./wide_words | cat -e

Expected result

wrong number of arguments$

Constraints

Expected files

wide_words.c

Allowed functions

write

v0.40: Create exercises. Challenge the community.

Meet Studio →

wide_words

Words and tokens

Your mission

Write a program that normalizes one string argument by printing its words separated by exactly three spaces.

See it in action

./wide_words "  ship   small\tpatches " | cat -e

Expected result

ship   small   patches$

Your checklist

For your own tracking. Tests grade your code.

The program expects exactly one argument.
A word is a run of characters that is not a space or a tab.
Skip leading and trailing spaces or tabs from the input.
Print each word in its original order.
Place exactly three spaces between consecutive words.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline. If the input contains no words, print only a newline.
Use only write.

More examples

./wide_words "single" | cat -e

Expected result

single$

./wide_words | cat -e

Expected result

wrong number of arguments$

Constraints

Expected files

wide_words.c

Allowed functions

write

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

02Mixed spaces and tabsWaiting

03Single wordWaiting

04No wordsWaiting

05Too many argumentsWaiting