Sparse Table
Problems on sparse tables, including minimum, maximum and GCD on a segment in constant time, lowest common ancestor through an Euler tour, and jumps of length 2^k along a sequence or tree.
Related problem sets are under Range queries, Segment tree and Trees.
Problems
Joining Couples#6604
Very hard
Be Geeks!#9760
Very hard
Suspects#11509
Hard
Another easy string problem#11545
Very hard
Mountaineers#11637
Very hard
World#12426
Very hard