Good day everyone.

Today I was trying to solve a problem that required 2D segment trees so I tried to learn them. I didn't get enough resources and the ones I got I didn't understand.

I have encountered the word 'quadtree' a lot so I have a couple of questions.

Could somebody tell me the diffrence between quadtrees and 2D-segment trees or are they the same? and could somebody point me to an article the explains 2D-segment trees well enough to be understood by me. Or can someone explain it here please ?

Thank you for reading.