Codeforces - 1166C - A Tale of Two Lands地址http://codeforces.com/contest/1166/problem/C原文地址https://www.lucien.ink/archives/432题目The legend of the foundation of Vectorland talks of two integers $x$ a...
题目链接http://codeforces.com/contest/985/problem/D题目You are going to the beach with the idea to build the greatest sand castle ever in your head! The beach is not as three-dimensional as you could hav...
题目链接：http://exam.upc.edu.cn/problem.php?id=5559题目：题目描述5G is the proposed next telecommunications standards beyond the current 4G standards. 5G planning aims at higher capacity than current 4G, allo...