Look in java I've done it pretty easy, doubt it's any segfault.
But u might be doing something that causes the issue , try to get my solution in c++.
It's pretty straight forward and I'm not trying to be clever on it , who knows what format or other might be causing it.

I'm rlly bad at coding, I've written over 1000 lines on this 1, maybe 2000 lines
so I can find out it's the wrong way. Such abstract description.
I've seen that pros use collectors,streams and a lot of shorthand notation, I'm so far .

Can someone tell me how long it took u to do this?
I did it in about a day :( , how is that?;
And there is rlly clean code .Can u guys rlly write that code on the first try?