v0.40: Create exercises. Challenge the community.

find_n

Your mission

Write a program that scans a string argument and prints the first lowercase n it finds.

See it in action

./find_n "npm said no"

Expected result

Your checklist

For your own tracking. Tests grade your code.

Accept exactly one argument.
Scan the string from left to right and locate the first occurrence of the lowercase letter n.
Print that character followed by a newline.
If the string contains no lowercase n, print only a newline.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline.

More examples

./find_n "skip this"

Expected result

(empty result)

./find_n

Expected result

wrong number of arguments

Constraints

Expected files

find_n.c

Allowed functions

write

find_n

Strings: walking and searching

Your mission

Write a program that scans a string argument and prints the first lowercase n it finds.

See it in action

./find_n "npm said no"

Expected result

Your checklist

For your own tracking. Tests grade your code.

Accept exactly one argument.
Scan the string from left to right and locate the first occurrence of the lowercase letter n.
Print that character followed by a newline.
If the string contains no lowercase n, print only a newline.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline.

More examples

./find_n "skip this"

Expected result

(empty result)

./find_n

Expected result

wrong number of arguments

Constraints

Expected files

find_n.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

02First character is nWaiting

03n appears mid-stringWaiting

04No n in stringWaiting

05Uppercase N is not matchedWaiting

06Too many argumentsWaiting

find_n

Your mission

Write a program that scans a string argument and prints the first lowercase n it finds.

See it in action

./find_n "npm said no"

Expected result

Your checklist

For your own tracking. Tests grade your code.

Accept exactly one argument.
Scan the string from left to right and locate the first occurrence of the lowercase letter n.
Print that character followed by a newline.
If the string contains no lowercase n, print only a newline.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline.

More examples

./find_n "skip this"

Expected result

(empty result)

./find_n

Expected result

wrong number of arguments

Constraints

Expected files

find_n.c

Allowed functions

write

v0.40: Create exercises. Challenge the community.

Meet Studio →

find_n

Strings: walking and searching

Your mission

Write a program that scans a string argument and prints the first lowercase n it finds.

See it in action

./find_n "npm said no"

Expected result

Your checklist

For your own tracking. Tests grade your code.

Accept exactly one argument.
Scan the string from left to right and locate the first occurrence of the lowercase letter n.
Print that character followed by a newline.
If the string contains no lowercase n, print only a newline.
If the program does not receive exactly one argument (argc must be 2), print wrong number of arguments followed by a newline.

More examples

./find_n "skip this"

Expected result

(empty result)

./find_n

Expected result

wrong number of arguments

Constraints

Expected files

find_n.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

02First character is nWaiting

03n appears mid-stringWaiting

04No n in stringWaiting

05Uppercase N is not matchedWaiting

06Too many argumentsWaiting