某岛

… : "…アッカリ~ン . .. . " .. .
December 10, 2021

The 2019 ICPC Asia Nanjing Regional Contest

https://codeforces.com/gym/103466

Problem A. A Hard Problem

Problem B. Chessboard

开始以为是培养皿问题。。。
后来发现只能连续的整行 or 整列。。(话说我小时候抄书的时候就喜欢用这种扫描方式。。。)
简单组合数讨论一下即可。

Problem C. Digital Path

Problem D. Holes

看起来是挺标准的期望 DP。。。居然是这套题里最难得题?

Problem E. Observation

不会。
https://blog.csdn.net/xym_CSDN/article/details/102906128

Problem F. Paper Grading

https://blog.csdn.net/qq_43202683/article/details/104100136

Problem G. Poker Game

Problem H. Prince and Princess

Problem I. Space Station

Problem J. Spy

Problem K. Triangle