FPEvalRepoPublic/LeetCodeMetaData
0399
1{2 "id": 2625,3 "name": "increment-submatrices-by-one",4 "difficulty": "Medium",5 "link": "https://leetcode.com/problems/increment-submatrices-by-one/",6 "date": "2023-01-08",7 "task_description": "You are given a positive integer `n`, indicating that we initially have an `n x n` **0-indexed** integer matrix `mat` filled with zeroes. You are also given a 2D integer array `query`. For each `query[i] = [row1i, col1i, row2i, col2i]`, you should do the following operation: Add `1` to **every element** in the submatrix with the **top left** corner `(row1i, col1i)` and the **bottom right** corner `(row2i, col2i)`. That is, add `1` to `mat[x][y]` for all `row1i <= x <= row2i` and `col1i <= y <= col2i`. Return_ the matrix_ `mat`_ after performing every query._ **Example 1:** ``` **Input:** n = 3, queries = [[1,1,2,2],[0,0,1,1]] **Output:** [[1,1,0],[1,2,1],[0,1,1]] **Explanation:** The diagram above shows the initial matrix, the matrix after the first query, and the matrix after the second query. - In the first query, we add 1 to every element in the submatrix with the top left corner (1, 1) and bottom right corner (2, 2). - In the second query, we add 1 to every element in the submatrix with the top left corner (0, 0) and bottom right corner (1, 1). ``` **Example 2:** ``` **Input:** n = 2, queries = [[0,0,1,1]] **Output:** [[1,1],[1,1]] **Explanation:** The diagram above shows the initial matrix and the matrix after the first query. - In the first query we add 1 to every element in the matrix. ``` **Constraints:** `1 <= n <= 500` `1 <= queries.length <= 104` `0 <= row1i <= row2i < n` `0 <= col1i <= col2i < n`",8 "test_case": [9 {10 "label": "Example 1",11 "input": "n = 3, queries = [[1,1,2,2],[0,0,1,1]]",12 "output": "[[1,1,0],[1,2,1],[0,1,1]] "13 },14 {15 "label": "Example 2",16 "input": "n = 2, queries = [[0,0,1,1]]",17 "output": "[[1,1],[1,1]] "18 }19 ],20 "constraints": [21 "Add 1 to every element in the submatrix with the top left corner (row1i, col1i) and the bottom right corner (row2i, col2i). That is, add 1 to mat[x][y] for all row1i <= x <= row2i and col1i <= y <= col2i.",22 "1 <= n <= 500",23 "1 <= queries.length <= 104",24 "0 <= row1i <= row2i < n",25 "0 <= col1i <= col2i < n"26 ],27 "python_template": "class Solution(object):\n def rangeAddQueries(self, n, queries):\n \"\"\"\n :type n: int\n :type queries: List[List[int]]\n :rtype: List[List[int]]\n \"\"\"\n ",28 "java_template": "class Solution {\n public int[][] rangeAddQueries(int n, int[][] queries) {\n \n }\n}",29 "metadata": {30 "func_name": "rangeAddQueries"31 }32}