蜂窝信使AI (CI翻译)
Problem Statement
题目描述
AI (CI翻译)Snuke wants to design a cellular automaton that conveys a binary sequence, written into a certain cell over
$N$turns, to a distant cell.
AI (CI翻译)Snuke 想要设计一种元胞自动机,将在
$N$个回合中写入某个单元格的二进制序列传递到远处的另一个单元格。
1. Grid
1. 网格
AI (CI翻译)There is an infinitely large grid. Each cell has a state of $0$ or $1$.
有一个无限大的网格。每个单元格的状态为 $0$ 或 $1$。AI (CI翻译)
Let some row of the grid be row $0$ and some column be column $0$, with row numbers increasing by $1$ downward and column numbers increasing by $1$ to the right. Let $(r,c)$ denote the coordinates of the cell at row $r$ and column $c$. The coordinates of the cells are as shown in the figure below.
令网格中的某一行为第 0 行,某一列为第 0 列,行号向下每次增加 $1$,列号向右每次增加 $1$。行号为 $r$、列号为 $c$ 的单元格坐标记为 $(r,c)$。下图展示了单元格的坐标。AI (CI翻译)

AI (CI翻译)
The cells adjacent to a given cell refer to the eight cells sharing an edge or a vertex with it.
给定单元格的相邻单元格,是指与其共享边或顶点的八个单元格。AI (CI翻译)
You may choose a rectangular region satisfying the following conditions, and freely set the initial states of the cells within the region.
你可以选择一个满足以下条件的矩形区域,并自由设置该区域内单元格的初始状态。AI (CI翻译)
- Both the height
$H$and the width$W$are between$1$and$150$, inclusive. - The coordinates of the top-left cell are
$(0,0)$.
- 高度
$H$和宽度$W$均在$1$到$150$之间(含端点)。 - 左上角单元格的坐标为
$(0,0)$。
The initial states of all cells outside the region are $0$.
区域外所有单元格的初始状态均为 $0$。AI (CI翻译)
2. Update Operation
2. 更新操作
AI (CI翻译)Decide on a value $F_{i,j}$, either $0$ or $1$, for each $i=0,1$ and $j=0,1,\ldots,8$; let these values be the update rule. However, $F_{0,0}=0$ must hold.
对于每个 $i=0,1$ 和 $j=0,1,\ldots,8$,决定一个值 $F_{i,j}$,其值为 $0$ 或 $1$;这些值构成更新规则。但是,必须满足 $F_{0,0}=0$。AI (CI翻译)
In the update operation, the states of all cells are updated simultaneously. For a given cell, let $i$ be its state before the update and $j$ be the sum of the states of the eight adjacent cells; then its state after the update is $F_{i,j}$.
在更新操作中,所有单元格的状态会同时更新。对于给定的单元格,令 $i$ 表示更新前该单元格的状态,令 $j$ 表示八个相邻单元格的状态之和,则更新后该单元格的状态为 $F_{i,j}$。AI (CI翻译)
3. Designing the Automaton
3. 设计元胞自动机
AI (CI翻译)You need to decide on and output the following values.
你需要决定并输出以下数值。AI (CI翻译)
- The update rule
$F_{i,j}$$(i=0,1)$$(0 \le j \le 8)$ $F_{0,0}=0$must hold.- The height
$H$and width$W$of the rectangular region for which the initial state is set - Both
$H$and$W$must be between$1$and$150$, inclusive. - The initial states
$A_{r,c}$$(0 \le r \lt H)$$(0 \le c \lt W)$within the rectangular region - The coordinates
$(R_s,C_s)$of the sending cell and$(R_t,C_t)$of the receiving cell $0 \le R_s,R_t \lt H$and$0 \le C_s,C_t \lt W$must hold.$50 \le |C_s-C_t| \le 100$must hold.
- The delay
$D$from sending to receiving - It must be possible to read, at the receiving cell on turn
$k+D-1$, the value that was written to the sending cell on turn$k$.$50 \le D \le 100$must hold.
- 更新规则
$F_{i,j}$$(i=0,1)$$(0 \le j \le 8)$ - 必须满足
$F_{0,0}=0$。 - 设置初始状态的矩形区域的高度
$H$和宽度$W$ $H$和$W$均必须在$1$到$150$之间(含端点)。- 矩形区域内的初始状态
$A_{r,c}$$(0 \le r \lt H)$$(0 \le c \lt W)$ - 发送单元格的坐标
$(R_s,C_s)$和接收单元格的坐标$(R_t,C_t)$ - 必须满足
$0 \le R_s,R_t \lt H$且$0 \le C_s,C_t \lt W$。- 必须满足
$50 \le |C_s-C_t| \le 100$。
- 必须满足
- 从发送到接收的延迟
$D$ - 必须能够在第
$k+D-1$个回合的接收单元格中,读出第$k$个回合写入发送单元格的值。- 必须满足
$50 \le D \le 100$。
- 必须满足
4. Judging Method
4. 评测方法
AI (CI翻译)Judging is performed as follows.
评测过程如下。AI (CI翻译)
- Decide on a positive integer
$N$and a sequence$S=(S_1,S_2, \ldots ,S_N)$of length$N$consisting of$0$s and$1$s. These are fixed for each test case. - Receive the design of the automaton that you output.
- Prepare an empty sequence
$T$, and simulate$N+D-1$turns starting from the initial state. Specifically, for each$k=1,2,\ldots,N+D-1$, perform the following steps in order on turn$k$.
- If
$k \le N$, change the state of the sending cell$(R_s,C_s)$to$S_k$.- Perform one update operation on the grid.
- If
$D \le k < D+N$, append the state of the receiving cell$(R_t,C_t)$to the end of$T$.
- After the simulation ends, if
$S=T$, your output is judged correct; otherwise, it is judged incorrect.
- 决定一个正整数
$N$和一个长度为$N$、由$0$和$1$组成的序列$S=(S_1,S_2, \ldots ,S_N)$。这些内容对每个测试用例都是固定的。 - 接收你输出的元胞自动机设计方案。
- 准备一个空序列
$T$,从初始状态开始模拟$N+D-1$个回合。具体来说,对于每个$k=1,2,\ldots,N+D-1$,按顺序执行第$k$个回合中的以下步骤。
- 如果
$k \le N$,将发送单元格$(R_s,C_s)$的状态改为$S_k$。- 在网格上执行一次更新操作。
- 如果
$D \le k < D+N$,将接收单元格$(R_t,C_t)$的状态追加到$T$的末尾。
- 模拟结束后,如果
$S=T$,则判定输出正确;否则判定输出错误。
It is guaranteed that there exists a design of the automaton that is judged correct regardless of $N$ and $S$, but due to implementation details of the judge for this problem, $N$ and $S$ are fixed for each test case file, and only cases with $N \le 300$ are used.
保证存在一种无论 $N$ 和 $S$ 如何取值都能被判定为正确的元胞自动机设计方案。但是,由于本题评测器的实现细节,$N$ 和 $S$ 对每个测试用例文件都是固定的,并且只使用满足 $N \le 300$ 的测试用例。AI (CI翻译)
Constraints
约束条件
AI (CI翻译)- The
$N$used by the judge is between$1$and$300$, inclusive.
- 评测器使用的
$N$在$1$到$300$之间(含端点)。
Input
输入格式
AI (CI翻译)This problem provides no input.
本题没有输入。AI (CI翻译)
Output
输出格式
AI (CI翻译)Output in the following format:
请按照以下格式输出:AI (CI翻译)
F_{0,0}F_{0,1}\ldots F_{0,8}
F_{1,0}F_{1,1}\ldots F_{1,8}
H W
A_{0,0}A_{0,1}\ldots A_{0,W-1}
A_{1,0}A_{1,1}\ldots A_{1,W-1}
\vdots
A_{H-1,0}A_{H-1,1}\ldots A_{H-1,W-1}
R_s C_s R_t C_t D
F_{0,0}F_{0,1}\ldots F_{0,8}
F_{1,0}F_{1,1}\ldots F_{1,8}
H W
A_{0,0}A_{0,1}\ldots A_{0,W-1}
A_{1,0}A_{1,1}\ldots A_{1,W-1}
\vdots
A_{H-1,0}A_{H-1,1}\ldots A_{H-1,W-1}
R_s C_s R_t C_t DAI (CI翻译)
Your output must satisfy the following conditions.
你的输出必须满足以下条件。AI (CI翻译)
$F_{i,j} \in \{0,1\}$$F_{0,0} = 0$$1 \le H,W \le 150$$A_{r,c} \in \{0,1\}$$0 \le R_s,R_t \lt H$$0 \le C_s,C_t \lt W$$50 \le |C_s-C_t| \le 100$$50 \le D \le 100$
$F_{i,j} \in \{0,1\}$$F_{0,0} = 0$$1 \le H,W \le 150$$A_{r,c} \in \{0,1\}$$0 \le R_s,R_t \lt H$$0 \le C_s,C_t \lt W$$50 \le |C_s-C_t| \le 100$$50 \le D \le 100$
If your output satisfies the above conditions, and is judged correct by the judging method described above for all prepared test cases, this problem is considered solved.
如果你的输出满足上述条件,并且对于所有准备好的测试用例都通过上述评测方法的判定,则认为本题已解决。AI (CI翻译)
Sample Output
样例输出
AI (CI翻译)000100000
001100000
4 54
100000000000000000000000000000000000000000000000000000
000010000000000000000000000000000000000000000000000000
100010000000000000000000000000000000000000000000000000
011110000000000000000000000000000000000000000000000000
0 3 0 53 100
000100000
001100000
4 54
100000000000000000000000000000000000000000000000000000
000010000000000000000000000000000000000000000000000000
100010000000000000000000000000000000000000000000000000
011110000000000000000000000000000000000000000000000000
0 3 0 53 100AI (CI翻译)
This sample output is provided to illustrate the output format. For $N=1$, it is correct for all $S$, but for $2 \le N$, there exist some $S$ for which it is incorrect.
该样例输出用于说明输出格式。对于 $N=1$,它对所有 $S$ 都是正确的;但对于 $2 \le N$,存在一些 $S$ 使其不正确。AI (CI翻译)
Visualizer
可视化工具
AI (CI翻译)You can check the behavior of your automaton using the visualizer.
你可以使用可视化工具查看你的元胞自动机的运行情况。AI (CI翻译)
题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(gpt-6.1-sol),如有出入请以原文为准。