In Java the "short_tail_long_loop" test fails. However, standard tests pass. Error "Incorrect loop size expected:<8778> but was:<4389>". So, at step 4389 I encountered a looped element, at least it had a match by hash (I used HashMap). How can this be?

Same :(((

Seems broken for Kotlin. No Node implementation available. I like to code locally and not in the browser. Am I missing something?

Random tests generate 100 test cases, each with a list which has 10-20k nodes in the initial, "prefix" part, and 10-20k nodes in the loop part. Your solution is able to handle 3-5 such tests before timing out.

How did you fix this? Im confused because for me it just mentiones 3 passed test and random test timed out but it doesn't mention what exactly the random test was for me to debug the problem.

The intention behind the task is to solve it without hashing. However, some languages do not block this, and if you can use HashMap in your language to solve the challenge, good for you! But you will miss an opportunity to learn a nice algorithm :)

I don't understand the Hash part. Am I allowed to use a HashMap or not?

The fact that objects have no attributs does not mean that they do not differ in any way form each other. They are different nodes, and you can easily check if they are the same, or different node.

The fact that nodes have no readable property does not make the kata broken.

It's broken in php. $node->next() returns only the same object, which has nothing in it except the next method. Literally. What should I do with it if the objects don't even differ from each other in any way and it falls into an endless cycle?

  var_dump(get_object_vars($node));
  var_dump(serialize($node));
  $b = $node->getNext();
  var_dump(get_object_vars($b));
  var_dump(serialize($b));

array(0) {
}
string(33) "O:4:"Node":1:{s:7:"*next";r:1;}"
array(0) {
}
string(33) "O:4:"Node":1:{s:7:"*next";r:1;}"

i don't even know what this is about

find the answer was not too diffcult, solve the timeout problem was important! feel fun with this KATA

Al final lo hiciste po!

You shoul tell us the concept, because many of us are lost in this kata!