单个题目的链接Codeforces 1080A - Petya and OrigamiCodeforces 1080B - Margarite and the best presentCodeforces 1080C - Masha and two friendsCodeforces 1080D - Olya and magical squareCodeforces 1080E - Sony...
Codeforces 1080F - Katya and Segments Sets - 可持久化线段树题解链接https://lucien.ink题目链接https://codeforces.com/contest/1080/problem/F题目It is a very important day for Katya. She has a test in a programming cl...
Codeforces 1080E - Sonya and Matrix Beauty - Manacher题解链接https://lucien.ink题目链接https://codeforces.com/contest/1080/problem/E题目Sonya had a birthday recently. She was presented with the matrix of siz...
Codeforces 1080D - Olya and magical square - 思维题解链接https://lucien.ink题目链接https://codeforces.com/contest/1080/problem/D题目Recently, Olya received a magical square with the size of $2^n\times 2^n$.It ...