[HDOJ6494] 球赛（DP）

04-17

[HDOJ1055] Color a Tree (贪心)

04-13

[HDOJ6425] Rikka with Badminton (组合数学)

08-20

[HDOJ6418] Rikka with Stone-Paper-Scissors (纳什均衡)

08-20

[HDOJ3501] Calculation 2 (容斥 or 欧拉函数)

08-13

[HDOJ6395] Sequence (反演思想，整除分块，矩阵快速幂)

08-13

[HDOJ6386] Age of Moyu (最短路)

08-13

2018百度之星-初赛（B）ADF题解

08-12

[2018百度之星] 初赛（A）A-C题解

08-11

[HDOJ6351] 18多校05 Beautiful Now (暴力，全排列，置换群)

08-06