故城故人旧故事 敌不过这一身无用固执

2.22

CF1325E Ehab's REAL Number Theory Problem

CF1530H Turing's Award

CF1672I PermutationForces

P14250 [集训队互测 2025] 携春同行

CF1558F Strange Sort

2.25

P14340 [JOISC 2019] 考试 / Examination

P5853 [USACO19DEC] Tree Depth P

P14342 [JOISC 2019] 馕 / Naan

P14347 [JOISC 2019] 灯 / Lamps

P14351 [JOISC 2019] 矿物 / Minerals

P9047 [PA 2021] Poborcy podatkowi

[AGC028C] Min Cost Cycle

CF1534G A New Beginning

CF573E Bear and Bowling

LOJ576 签到游戏

UOJ497 新年的复读机

3.1

CF1392G Omkar and Pies

CF2118F Shifts and Swaps

CF2101E Kia Bakes a Cake

CF2097E Clearing the Snowdrift

CF2077D Maximum Polygon

CF1610H Squid Game

CF1499G Graph Coloring

CF1067D Computer Game

CF1225G To Make 1

CF1344E Train Tracks

CF1240F Football