good use of sort count

You asked what's BFS/DFS. You don't want the explanation.

You didn't ask for "input" (neither specify what you mean by this). You want to receive some "input".

What?

I was actually hoping for someone to provide original input and enrich the conversation

DFS, BFS

I don't mean to hijack the thread but what are DFS and BFS, some kind of standard pathfinding algorithms?

done

damn me... I'll fix it, sorry.

(actually, first and last tile being a wall shouldn't change anything but... well, it is in the description, yes)

In Java during the random test cases I run in to cases where the start position contains a wall, like this:

W.\n
..

I assume this is a bug since the tasks states that start and end positions are empty. I see there was an issue with where the end position contained a wall. Probably similar problem.

should be good, now.

No, you're not supposed to do that.

Maybe I messed up something. Let me take a look.

OK, I forgot to constrain the last cell. Will update the kata.

Programming language: Java
Challenge: Pathfinder #1

Hello.

I've stumbled over the following issue:

My code works fine for the fixedTests and the moreTests...

But when it comes to the randomTests, I get mazes like this one:

..W...W.W \n
..WW..WWW \n
.....W... \n
.W..W.... \n
W....WWWW \n
.......W. \n
..W...... \n
WW.WW..WW \n
.....W..W

expected: but was:

Why should that return ?

Could anyone explain that to me? The last tile is obviously a wall, which can't be entered.

Is that just an error in the java version? (java has only been solved once and maybe by 'accident'...)

Thanks in advance,

nudelchef

I did a recursive backtracking solution in python. I had to set the maximum recursion limit to avoid hitting that for the larger test cases. Is there an major optimization I am missing. If there isn't, can we have the test up the recursion limit, which can confuse ppl thinking there solution is invalid.