v0.40: Create exercises. Challenge the community.

arg_count

Your mission

Write a program that prints the number of arguments passed after the executable name.

See it in action

./arg_count alpha beta gamma

Expected result

Your checklist

For your own tracking. Tests grade your code.

Count every argument after argv[0].
Print that count in base 10 followed by a newline.
When no argument is provided, print 0 followed by a newline.
Do not inspect or parse the argument values themselves.
Use only write.

More examples

./arg_count

Expected result

Constraints

Expected files

arg_count.c

Allowed functions

write

arg_count

Command line

Your mission

Write a program that prints the number of arguments passed after the executable name.

See it in action

./arg_count alpha beta gamma

Expected result

Your checklist

For your own tracking. Tests grade your code.

Count every argument after argv[0].
Print that count in base 10 followed by a newline.
When no argument is provided, print 0 followed by a newline.
Do not inspect or parse the argument values themselves.
Use only write.

More examples

./arg_count

Expected result

Constraints

Expected files

arg_count.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

02One argumentWaiting

03Three argumentsWaiting

04Arguments are counted, not parsedWaiting

05Multi-digit argument countWaiting

arg_count

Your mission

Write a program that prints the number of arguments passed after the executable name.

See it in action

./arg_count alpha beta gamma

Expected result

Your checklist

For your own tracking. Tests grade your code.

Count every argument after argv[0].
Print that count in base 10 followed by a newline.
When no argument is provided, print 0 followed by a newline.
Do not inspect or parse the argument values themselves.
Use only write.

More examples

./arg_count

Expected result

Constraints

Expected files

arg_count.c

Allowed functions

write

v0.40: Create exercises. Challenge the community.

Meet Studio →

arg_count

Command line

Your mission

Write a program that prints the number of arguments passed after the executable name.

See it in action

./arg_count alpha beta gamma

Expected result

Your checklist

For your own tracking. Tests grade your code.

Count every argument after argv[0].
Print that count in base 10 followed by a newline.
When no argument is provided, print 0 followed by a newline.
Do not inspect or parse the argument values themselves.
Use only write.

More examples

./arg_count

Expected result

Constraints

Expected files

arg_count.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

02One argumentWaiting

03Three argumentsWaiting

04Arguments are counted, not parsedWaiting

05Multi-digit argument countWaiting