# 1476. Subrectangle Queries

Implement the class `SubrectangleQueries` which receives a `rows x cols` rectangle as a matrix of integers in the constructor and supports two methods:

1.` updateSubrectangle(int row1, int col1, int row2, int col2, int newValue)`

• Updates all values with `newValue` in the subrectangle whose upper left coordinate is `(row1,col1)` and bottom right coordinate is `(row2,col2)`.

2.` getValue(int row, int col)`

• Returns the current value of the coordinate `(row,col)` from the rectangle.

Example 1:

```Input
[[[[1,2,1],[4,3,4],[3,2,1],[1,1,1]]],[0,2],[0,0,3,2,5],[0,2],[3,1],[3,0,3,2,10],[3,1],[0,2]]
Output
[null,1,null,5,5,null,10,5]
Explanation
SubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,2,1],[4,3,4],[3,2,1],[1,1,1]]);
// The initial rectangle (4x3) looks like:
// 1 2 1
// 4 3 4
// 3 2 1
// 1 1 1
subrectangleQueries.getValue(0, 2); // return 1
// After this update the rectangle looks like:
// 5 5 5
// 5 5 5
// 5 5 5
// 5 5 5
subrectangleQueries.getValue(0, 2); // return 5
subrectangleQueries.getValue(3, 1); // return 5
// After this update the rectangle looks like:
// 5   5   5
// 5   5   5
// 5   5   5
// 10  10  10
subrectangleQueries.getValue(3, 1); // return 10
subrectangleQueries.getValue(0, 2); // return 5
```

Example 2:

```Input
[[[[1,1,1],[2,2,2],[3,3,3]]],[0,0],[0,0,2,2,100],[0,0],[2,2],[1,1,2,2,20],[2,2]]
Output
[null,1,null,100,100,null,20]
Explanation
SubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,1,1],[2,2,2],[3,3,3]]);
subrectangleQueries.getValue(0, 0); // return 1
subrectangleQueries.getValue(0, 0); // return 100
subrectangleQueries.getValue(2, 2); // return 100
subrectangleQueries.getValue(2, 2); // return 20
```

Constraints:

• There will be at most `500` operations considering both methods: `updateSubrectangle` and `getValue`.
• `1 <= rows, cols <= 100`
• `rows == rectangle.length`
• `cols == rectangle[i].length`
• `0 <= row1 <= row2 < rows`
• `0 <= col1 <= col2 < cols`
• `1 <= newValue, rectangle[i][j] <= 10^9`
• `0 <= row < rows`
• `0 <= col < cols`

Medium

Normal

Nuro

### Solution(Chinese):

LEETCODE 1476. Subrectangle Queries 解题思路分析