10-14 牛客练习赛71 C- 数学考试 DP 10-13 牛客练习赛71 E- 神奇的迷宫 点分治+NTT 07-13 字符串hash模板 07-13 2020牛客暑期多校训练营（第二场）J 置换群，欧几里得求逆元 07-13 Gym-101987 2018-2019 ACM-ICPC, Asia Seoul Regional Contest K-TV Show Game 2-sat，tarjan 07-11 Gym-101810 G ACM International Collegiate Programming Contest, Amman Collegiate Programming Contest (2018) 07-08 Gym-102001，2018 ICPC Asia Jakarta Regional Contest K Boomerangs 07-02 codeforces 1373G Pawns 线段树 06-30 codeforces 1369E DeadLee 06-30 codeforces 1373F Network Coverage 06-29 gym-102082，2018-2019, ICPC, Asia Yokohama Regional Contest 2018 J Colorful Tree 06-18 codeforces 1367 F1，F2 Flying Sort 05-13 “科大讯飞杯”第十七届同济大学程序设计预选赛暨高校网络友谊赛 C 张老师的旅行 05-13 “科大讯飞杯”第十七届同济大学程序设计预选赛暨高校网络友谊赛 H-时空栈 05-13 Codeforces 1349A 1350C Orac and LCM 05-01 gym-102307 A. Amazon 05-01 gym-102307 D. Do Not Try This Problem 04-07 AtCoder Beginner Contest 161 E - Yutori