[Community Puzzle] We're going in circles!

Puzzles
#1

Coding Games and Programming Challenges to Code Better

Send your feedback or ask for help here!

Created by @BartholomewIII,validated by @Adam798,@Chomb and @ggrn.
If you have any issues, feel free to ping them.

#2

I have 100% in my tests and 57% in my validators -_-’

If I find my bug, I will try to find a validator for it.

1 Like
#3

I had same problem. Watch out for dots ‘.’ because multiple different loops can cross same dot. Focus on marking only visited ‘<>v^’.

#4

If your program passed all the tests (including “overlapping loops”) but not all of the validators, I’m a little confused. Perhaps it’s a time-out issue? Double check that you don’t have any conditions that would loop infinitely.

1 Like
#5

I fail at validators 2, 3 and 7.

I think I correctly managed the dots, but I will check.

Edit : OK now I pass all tests and all validators. Not completely sure what code modification did the trick, but there was definitely something strange about how I managed the dots.

#6

Nice!

If you figure out exactly what code passes all the tests but not all of the validators, please DM me and I’ll see if I could add/modify the tests to make sure that doesn’t happen. (then again, I don’t know if I’m able to do that)

1 Like
#7

Hey there

I share the same situation with @Yatagan : all tests OK but only 57% on validators (2,3, 7 as well).
Obviously, no hard-coded solution :grin:

Rather difficult to understand what’s wrong without validators…

#8

i have the same issue as as everyone,

All my tests are OK but only 57% on validators (2,3, 7 as well).
No hard-coded solution of course.
Using C#

#9

I think the test cases miss a situation when there are multiple “entries” into a single loop. Also a question doesn’t mention anything about such a situation. I assume it’s a valid loop, an example

>.>.v
>.^..
>.^..
>.^.<

I assume an expected answer is 1

#10

Yes it is.

#11

Had the same issue as previous authors - tests 2, 3 and 7 are failing and only 57% score.

My mistake was: marking as visited all cells in a grid which I visited, not only cells with arrows…

The following test shows my mistake:

Input:

3 2
>.v
.^<

Output: should be 0.

Here I marked cell (row=0, column=0, value=’>’) as visited, then cell (row=0, column=1, value=’.’) as visited (mistake!), then cell (row=0, column=2, value=‘v’), then cell (row=1, column=2, value=’<’), then cell (row=1, column=1, value=’^’). Now my program arrives at cell (row=0, column=1, value=’.’), which was marked as visited, and decides that this path forms a loop, which was not correct.

But if you do not mark empty cells as visited, there should be no problems like this one…

2 Likes
#12

The sixth test case should cover that situation (“Multiple inputs”).

1 Like
#13

It’s a bit unfortunate that people are struggling with validators after passing all the tests ): I hope that people having difficulties can get some ideas after perusing through this thread.

#14

When a validator is causing too many failure and frustration, an effective help is to open the validator to become a new test case, and create similar new cases to fill up the validators.

2 Likes
#15

I’d be willing to do that. How do you make changes? (I looked before and could not see an edit button)

#16

We have to move them around manually.

Just like how you were editing your contribution before getting approved, in your Edit mode, copy your validator data to create a new test case.
The original validator and the new case validator should have new data to paste in.

1 Like
#17

The overlapping loops test will fail if you mark the dots on the field, so this shouldn’t be the issue.

#18

i had a time out issue, it was looping indefintely on the last 2 tests. i added a time out counter and now i have 100% for the real submission :slight_smile:

1 Like
#19

thanks :grinning_face_with_smiling_eyes:
your test case has put the focus on my mistake so that I could fix it and reached 100%

In my code, the fix consists in adding a condition when evaluating the last point closing the loop:
first condition: the point is already in “beginning path” of the loop ==> 57% of validators
second condition: the point is not “.” (dot) ==> 100% of validators

thank you all :stuck_out_tongue_winking_eye:

#20

@horus71 @Makblack I moved validators 2 and 7 into their own tests and that should hopefully help you figure it out.

1 Like