https://cses.fi/problemset/task/1709

https://atcoder.jp/contests/abc259/tasks/abc259_g

https://atcoder.jp/contests/abc193/tasks/abc193_f

https://codeforces.com/problemset/problem/724/E

https://csacademy.com/contest/archive/task/fashion

https://open.kattis.com/problems/openpitmining

https://codeforces.com/contest/1082/problem/G

https://atcoder.jp/contests/arc085/tasks/arc085_c

https://atcoder.jp/contests/abc225/tasks/abc225_g

https://codeforces.com/problemset/problem/1146/G

https://codeforces.com/contest/1404/problem/E

