Enlarged Checker Board

题目描述

Tiles are aligned in $N$ horizontal rows and $N$ vertical columns. Each tile has a grid with $A$ horizontal rows and $B$ vertical columns. On the whole, the tiles form a grid $X$ with $(A\times N)$ horizontal rows and $(B\times N)$ vertical columns.
For $1\leq i,j \leq N$, Tile $(i,j)$ denotes the tile at the $i$-th row from the top and the $j$-th column from the left. Each square of $X$ is painted as follows.

Each tile is either a white tile or a black tile. Every square in a white tile is painted white; every square in a black tile is painted black. Tile $(1,1)$ is a white tile. Two tiles sharing a side have different colors. Here, Tile $(a,b)$ and Tile $(c,d)$ are said to be sharing a side if and only if $|a-c|+|b-d|=1$ (where $|x|$ denotes the absolute value of $x$).

Print the grid $X$ in the format specified in the Output section.

输入格式

Input is given from Standard Input in the following format: $N$ $A$ $B$

输出格式

Print $(A\times N)$ strings $S_1,\ldots,S_{A\times N}$ that satisfy the following condition, with newlines in between.

Each of $S_1,\ldots,S_{A\times N}$ is a string of length $(B\times N)$ consisting of $.$ and #. For each i$and$j$$(1 \leq i \leq A\times N,1 \leq j \leq B\times N)$, the$j$-th character of$S_i$is$.$if the square at the$i$-th row from the top and$j$-th column from the left in grid$X$ is painted white; the character is # if the square is painted black.

4 3 2

..##..##
..##..##
..##..##
##..##..
##..##..
##..##..
..##..##
..##..##
..##..##
##..##..
##..##..
##..##..

5 1 5

.....#####.....#####.....
#####.....#####.....#####
.....#####.....#####.....
#####.....#####.....#####
.....#####.....#####.....

4 4 1

.#.#
.#.#
.#.#
.#.#
#.#.
#.#.
#.#.
#.#.
.#.#
.#.#
.#.#
.#.#
#.#.
#.#.
#.#.
#.#.

1 4 4

....
....
....
....

提示

$1 \leq N,A,B \leq 10$ All values in input are integers.

标签: AtCoder|abc250B

来源

AtCoder|abc250B