Blog of RuSun

$\begin{matrix} One Problem Is Difficult \\ Because You {Don}^{'} t Know \\ Why It Is Diffucult \end{matrix}$

并查集标签

2022

09-29

P3402 可持久化并查集

07-03

CF788B Weird journey

05-29

P3631 [APIO2011]方格染色

04-14

CF1131D Gourmet choice

04-09

P4221 [WC2018]州区划分

2021

11-24

P2941 [USACO09FEB]Surround the Islands S

11-22

P3224 [HNOI2012]永无乡

11-16

P2754 [CTSC1999]家园 / 星际转移问题

11-15

P2024 [NOI2001] 食物链