Codeforces Round 1054 (Div. 3) - D、E

目录

• D. A and B
• E. Hidden Knowledge of the Ancients

Codeforces Round 1054 (Div. 3)

D. A and B

E. Hidden Knowledge of the Ancients

参考链接

• 双指针做法：https://zhuanlan.zhihu.com/p/1954707609866208306
• 容斥做法：https://www.cnblogs.com/cjiaw/articles/19148932