There has been less and less data structure problems in 2020. I think that it is inevitable because interesting data structure problems are hard to create. Still, I feel very sad about this. Let's share interesting data structure problems that you enjoyed in 2020!
For me, I especially love GP of Tokyo A, GP of Tokyo L and GP of Moscow D
Although a old problem, I really enjoyed solving SPOJ : INCSEQ
1462F - The Treasure of The Segments
1290E - Cartesian Tree by gamegame
No... it’s just that 300iq started watching animes
Should I stop?
Not if I have anything to say about it
That's up to you, but please start creating problems.