题目描述
Problem Statement
We have an $H \times W$ grid, where each square has one integer written on it.
For $1\leq i\leq H$ and $1\leq j\leq W$, let A_{i,j} denote the integer written on the square at the i-th row and j-th column.
You can do the operation below any number of times (possibly zero).
- Choose integers i and j such that $1\leq i\leq H - 1$ and $1\leq j\leq W - 1$.
- Choose another integer x.
- Add x to each of A_{i,j}, A_{i,j+1}, A_{i+1,j}, and A_{i+1,j+1}.
Print the minimum possible value of $\sum_{i=1}^H \sum_{j=1}^W |A_{i,j}|$ after your operations, and the integers on the grid when that value is achieved.
Input
Input is given from Standard Input from the following format:
H W
$A_{1,1} \ldots A_{1,W}$
$\vdots$
$A_{H,1} \ldots A_{H,W}$
Output
Print H + 1 lines.
The 1-st line should contain the value of $\sum_{i=1}^H \sum_{j=1}^W |A_{i,j}|$.
The 2-nd through (H+1)-th lines should contain the integers on the grid, in the following format:
$A_{1,1} \ldots A_{1,W}$
$\vdots$
$A_{H,1} \ldots A_{H,W}$
If there are multiple solutions, you may print any of them.
Constraints
- $2\leq H, W \leq 500$
- $|A_{i,j}|\leq 10^9$
Sample Input 1
2 3
1 2 3
4 5 6
Sample Output 1
9
0 -3 -1
3 0 2
Here is a sequence of operations that produces the grid in the Sample Output.
- Do the operation with (i, j, x) = (1, 1, -1).
- Do the operation with (i, j, x) = (1, 2, -4).
Here, we have $\sum_{i=1}^H \sum_{j=1}^W |A_{i,j}| = 0 + 3 + 1 + 3 + 0 + 2 = 9$.
Sample Input 2
2 2
1000000000 -1000000000
-1000000000 1000000000
Sample Output 2
4000000000
2000000000 0
0 2000000000
It is fine if |A_{i,j}| > 10^9 after your operations.
Sample Input 3
3 4
0 2 0 -2
-3 -1 2 0
-3 -3 2 2
Sample Output 3
0
0 0 0 0
0 0 0 0
0 0 0 0
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分