Hello ,

Iâ€™m trying to solve â€śApple treeâ€ť puzzle from input.txt, approved by Arglanir , InstouT94 and JohnnyYuge.

Link to puzzle

You have the position (I guess the center) of an apple by its (x,y,z), and the radius of the apple.

One apple falls, eventually hitting others, making them fall, too.

And you have to determine the number of fallen apples.

**I disagree with the second test (simple collision).**

Can anyone explain to me how 4 apples can fall whereas they are so far away one another ?

I would have answered 2. (index 5 and 0)

x y z r

0 0 0 25

200 200 0 25

200 -200 0 25

-200 200 0 25

-200 -200 0 25

5 10 500 10

This last one is falling.

4 apples fall if the radius of the last one is 260.

Thank you for your attention.

Flo