201353: [AtCoder]ARC135 D - Add to Square
Description
Score : $700$ points
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.
Constraints
- $2\leq H, W \leq 500$
- $|A_{i,j}|\leq 10^9$
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.
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