Random Perl tests produce strings with less than two characters.

Missing fixed and sample tests for strings with only 2 characters in

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Java fork

I am totally new to coding. I can solve most of what I've attempted but how to submit the solution is eluding me. Can anyone please assist? Do I simply paste my code in the top window?

Parameter name: arr. Arguments recieved: strings. The description does say that the function is recieving strings, but the misleading parameter name causes confusion. Please rename arr to str.

C# Function name should use PascalCase

No random tests in shell

I don't understand. I pass all the sample tests, but when I attempt I get:

`remove_char` should return `dst`

But I think I'm doing it:

char* remove_char(char* dst, const char* src)
{
  ...
  return dst;
}

Why is this happening? I'm training in C.

(UPDATE)

I don't know if this help, but I'm getting this on STDERR

fixture.c:13:15: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
    for(i=0; i<sizeof(strings)/sizeof(char*); i++) {
             ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.

On sample tests:
Expected: equal to "un"
Actual: "un"
Is it maybe the size of the string?

It's not specified if buffer sizes in C are exactly the minimum sizes needed for the answers or a few more characters are available. It makes validity of certain solutions questionable. Either it should be guaranteed that the buffer is at least as big as an initial string or tests against writing beyond the allocated buffer should be added.
https://www.codewars.com/kumite/5ba8f3fad312ddde3e00022e
Any thoughts on which is better?

Since the input parameter is mean to be a CSV string, calling it arr seemed misleading/deceptive