# Buổi 2 (21/5/2023)
# RMQ, Sparse Table, bảng thưa, bla bla

## A: https://cses.fi/problemset/task/1646
## B: https://cses.fi/problemset/task/1647

## C: https://codeforces.com/problemset/problem/872/B

## **Bài khó**
## D: https://codeforces.com/contest/5/problem/C
## E: https://codeforces.com/contest/475/problem/D

Link bài tập tham thảo:
https://codeforces.com/blog/entry/70418

https://cp-algorithms.com/data_structures/sparse-table.html#similar-data-structures-supporting-more-types-of-queries