8#9 - 多校6
[已经解决的题目红色标记,hard题目是AC队伍<10]
[题目后面是分类,括号里可以写些需要的知识点和简要做法]
01 Cut Pieces - 数学(寻找数学递推式,然后实现,注意取余。)
04 Integer Partition - 数学 (整数拆分,五边形数)
07 Message Passing
08 MU Puzzle
10 Triangulation(经典博弈,构造SG函数,打表找规律,确定循环节以后异或出结果即可)
11 Unshuffle - 2SAT/DFS(官方题解的做法是2SAT,用DFS也能过。DFS每层搜索出2个相同的字母,理论上时间复杂度会很高,但是测试数据不强,没有卡搜索)
Hard:
02 Evaluation - 数学(FFT)
03 Find Permutation -
05 Liveness Analysis
06 Mathematical Olympiad
09 Plane Partition
传送门:
4655 | Cut Pieces | 43.54%(145/333) |
4656 | Evaluation | 20.00%(1/5) |
4657 | Find Permutation | 30.00%(6/20) |
4658 | Integer Partition | 60.42%(29/48) |
4659 | Liveness Analysis | 10.71%(3/28) |
4660 | Mathematical Olympiad | 13.01%(16/123) |
4661 | Message Passing | 23.15%(47/203) |
4662 | MU Puzzle | 50.82%(185/364) |
4663 | Plane Partition | 17.65%(3/17) |
4664 | Triangulation | 41.34%(74/179) |
4665 | Unshuffle | 34.06%(110/323) |