[Community Puzzle] No More Pythons, Please!

Puzzles
#21

Neither of your examples are snakes. All the snakes are like the ones you can see in the test cases.

#22

Hello,
I have a problem with validator “04 - Validator Hard (One VERY large snake)”.
It’s not an optimization problem.
How can I pass all the tests but not this validator?

Thanks in advance

#23

I think you have to build some custom cases to test your code. That validator is larger than 60x60 and contains a long snake which spirals inwards (instead of outwards which is the situation of the corresponding test case).

#24

thx for reply, i found a problem.
Function recursive is bad with Python (1000 by default), and set up with sys.setrecursionlimit(10**7) cause crash python.exe

#25

You don’t need recursion for this problem. As no ambiguous cases are tested, you can be sure that there is only one valid path when you move along a snake.

#26

Hi, I just did this problem, but have an issue. I solved the problem and all the test cases work with it, but the same test cases don’t work when I submit my solution.

When I test my problem in the IDE I get test case 4 and 5 correct:

image
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But when I submit my code, I get cases 4 and 5 wrong even though they are the same test cases:

image

I understand that some validators can differ from the test cases, but these two have the same name, so I am not sure.

Thanks

#27

They have the same name but the inputs are still different.

#28

Ok, Thanks!

#33

Hi, I can’t make the last validator work, I’ve tester many cases but still can’t solve it.
What is specific in this validator ?

#34

Please refer to my earlier reply above.

#35

Ah this one was my missing logical piece.

Nice puzzle, nice build-up of cases for step-by-step working towards a full solution.