It is the question "Initials" from Code Coach. I've successfully completed it but I think it is wrong.

Question

As for first test case, there were 4 names. I ran my loop from [0,3] (i=0,i<4) but still it missed the last name. Same was happening in all other test cases. So I changed the loop to [0,4] (i=0,i<=4) and it ran successfully. Please tell me if there is something I'm not getting, for it didn't happen in any other code before.
This is my code:

https://code.sololearn.com/cK6lq75NIdOk/?ref=app

Answer 1

I see. Thank you I got it! I'll also try it with getchar().

Answer 2

I successfully executed it with getchar(). I'll now see if I can complete New Driver's License problem.