countdown

Your mission

The classic pre-deploy ritual: count down from 9 to 0 on a single line.

See it in action

./countdown

Expected result

9876543210

Your checklist

For your own tracking. Tests grade your code.

Output all digits from 9 down to 0 consecutively, with no separator between them.
The program takes no arguments, ignore any that are provided.
End the output with a newline.

Constraints

Expected files

countdown.c

Allowed functions

write

countdown

First program

Your mission

The classic pre-deploy ritual: count down from 9 to 0 on a single line.

See it in action

./countdown

Expected result

9876543210

Your checklist

For your own tracking. Tests grade your code.

Output all digits from 9 down to 0 consecutively, with no separator between them.
The program takes no arguments, ignore any that are provided.
End the output with a newline.

Constraints

Expected files

countdown.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

countdown

Your mission

The classic pre-deploy ritual: count down from 9 to 0 on a single line.

See it in action

./countdown

Expected result

9876543210

Your checklist

For your own tracking. Tests grade your code.

Output all digits from 9 down to 0 consecutively, with no separator between them.
The program takes no arguments, ignore any that are provided.
End the output with a newline.

Constraints

Expected files

countdown.c

Allowed functions

write

countdown

First program

Your mission

The classic pre-deploy ritual: count down from 9 to 0 on a single line.

See it in action

./countdown

Expected result

9876543210

Your checklist

For your own tracking. Tests grade your code.

Output all digits from 9 down to 0 consecutively, with no separator between them.
The program takes no arguments, ignore any that are provided.
End the output with a newline.

Constraints

Expected files

countdown.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