My code passed the testing phases but is showing up nonesense characters(like a square with cross in it) after some characters in my output when I attempt it. The characters aren't displaying in this comment so I'll just make a bracket at places that those strange characters appear.

Error Message :
Incorrect answer for input: "fhGdEgEaBdgeehehGghbheghGagcab"
Expected: "fh Gd Eg Ea Bdgeeheh Gghbhegh Gagcab"
Actual: "fh Gd() Eg() Ea() Bdgeeheh Gghbhegh Gagcab"

If the score < 0, return 0.

My code is passing some tests but a couple of them are kicking back. Logs and test below, I can't make sense of it!
I think the test value is incorrect in this case?

Log
Question 1:
Wrong answer, -1 point
Score is now -1

Question 2:
blank answer, 0 points
Score is now -1

Question 3:
blank answer, 0 points
Score is now -1

Question 4:
Wrong answer, -1 point
Score is now -2

total points is -2

Test Failed
Should return 0 with ["b", "d", "a", "c"] and ["a", "", "", "b"]
Expected: 0
But was: -2

Thank you guys! Appreciate it!

No you don't. It depends on how kata is authored, and one possibility is to print inputs from your solution.

I think you'd need to subscribe for a premium account

ternary

(condition) ? (if true, do this) : (otherwise, do this)

This is the ternary operator.

Hello! I'm learning myself how to program in C. Can anyone explain me what the code below means? I've passed the test but I found out that many people use this statement in solutions and I don't know what it means. Thanks in advance!
return score > 0 ? score : 0;