题目描述
Problem Description
There is a grid of $ N $ rows and $ N $ columns. Initially, all cells are painted white.
You are given $ Q $ queries $\text{Query}_1, \text{Query}_2, \ldots, \text{Query}_Q$. Process them in order.
There are three types of queries, with the following input format and content:
1 x y: If the cell at the $ x $-th row from the top and $ y $-th column from the left is white, paint it black; if it is black, paint it white.2 c: Rotate the entire grid $ 90 $ degrees clockwise if $ c $ isA, and counterclockwise if $ c $ isB.3 c: Invert the entire grid vertically if $ c $ isA, and horizontally if $ c $ isB.
Determine the state of the grid after processing all queries.
Input Format
The input is given from the standard input in the following format:
$ N $ $ Q $ $\text{Query}_1$ $\text{Query}_2$ $\vdots$ $\text{Query}_Q$
Output Format
Output $ N $ lines.
On the $i\,(1 \leq i \leq N)$-th line, output a string $ S $ of length $ N $ consisting only of 0 and 1. The $ j $-th character of $ S $ represents the color of the cell at the $ i $-th row from the top and $ j $-th column from the left in the final grid, where 0 corresponds to white and 1 corresponds to black.
Sample Input and Output
Sample Input #1
3 2
1 1 1
2 A
Sample Output #1
001
000
000
Sample Input #2
3 3
1 1 1
3 A
3 B
Sample Output #2
000
000
001
Sample Input #3
4 8
2 A
1 4 2
2 A
1 2 2
3 B
3 B
3 A
1 3 1
Sample Output #3
0000
0000
0100
0000
Notes/Hints
Constraints
- $1 \leq N \leq 300$
- $1 \leq Q \leq 2 \times 10^5$
- $1 \leq x, y \leq N$
- $ c $ is either
AorB - Each query is one of the three types described in the problem statement
Sample Explanation 1
After painting the cell at the $ 1 $-st row and $ 1 $-st column black, rotate the entire grid $ 90 $ degrees clockwise.
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分