ID NAME QUALITY USERS ACC % DIFFICULTY C I
34327 Cyclic Counting Gamble   3
27321 Increasing numbers   16 344
13
19
36998 Superpowertree   2 19
17
17
31938 SLIS   1 112
34
17
36886 Absurdistans Teaparties   3 10
34
17

#segment-tree-1

A segment tree is a tree data structure for storing intervals, or segments.

https://en.wikipedia.org/wiki/Segment_tree https://www.youtube.com/watch?v=ZBHKZF5w4YU - video lecture