Kids in school/ university have to survive intense/ grueling tests: hanging onto a rope & floor is removed; kill white bear in the woods? Spoiler.

[Kathy]

I don't remember much, but here is what I know.
These kids are in a school/ university, and they have to go through these intense tests. The first one is hanging onto a rope, and the floor is removed. One girl falls. After the survivors pass
More grueling test they are put with others who have also passed the test. One girl is taken out into the woods to try and kill this white bear? Not anyone has been able to do this. Well, she is able to kill the bear by thinking differently and brings the bear back to the school.

[Daisy]

Hi Kathy - please add some more info to your post header or the mods will lock it

[Kris]

Kathy, what's the genre (which we need to add to the topic header) - e.g., thriller, dystopia, horror, etc. for teens?

Around what year did you read this book?

I copied some book details to the topic header. Feel free to edit it.