Codeforces - 1166E - The LCMs Must be Large地址http://codeforces.com/contest/1166/problem/E原文地址https://www.lucien.ink/archives/434题目Dora the explorer has decided to use her money after several years ...
Codeforces - 1166D - Cute Sequences地址http://codeforces.com/contest/1166/problem/D原文地址https://www.lucien.ink/archives/433题目Given a positive integer $m$, we say that a sequence $x_1, x_2, \dots, x_n$...