The solution to yesterday’s puzzles?
for #1, I forgot the answer, but I know it has something to do with being 6 instead of 9.
for #2:
https://u.cubeupload.com/Zaydiscool777/dk0E1h.png
bin-tree end
is a node whose both l and r are null.
feel 32 ask any questions.
New puzzle: What is the places closest to me that has a Wikipedia article on it? Hint: it is less than 100 m more than 2 km away.