{ "data": { "question": { "questionId": "1572", "questionFrontendId": "1476", "categoryTitle": "Algorithms", "boundTopicId": 283331, "title": "Subrectangle Queries", "titleSlug": "subrectangle-queries", "content": "

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

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

\n\n\n\n

2. getValue(int row, int col)

\n\n\n\n

 

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Example 1:

\n\n
\nInput\n["SubrectangleQueries","getValue","updateSubrectangle","getValue","getValue","updateSubrectangle","getValue","getValue"]\n[[[[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]]\nOutput\n[null,1,null,5,5,null,10,5]\nExplanation\nSubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,2,1],[4,3,4],[3,2,1],[1,1,1]]);  \n// The initial rectangle (4x3) looks like:\n// 1 2 1\n// 4 3 4\n// 3 2 1\n// 1 1 1\nsubrectangleQueries.getValue(0, 2); // return 1\nsubrectangleQueries.updateSubrectangle(0, 0, 3, 2, 5);\n// After this update the rectangle looks like:\n// 5 5 5\n// 5 5 5\n// 5 5 5\n// 5 5 5 \nsubrectangleQueries.getValue(0, 2); // return 5\nsubrectangleQueries.getValue(3, 1); // return 5\nsubrectangleQueries.updateSubrectangle(3, 0, 3, 2, 10);\n// After this update the rectangle looks like:\n// 5   5   5\n// 5   5   5\n// 5   5   5\n// 10  10  10 \nsubrectangleQueries.getValue(3, 1); // return 10\nsubrectangleQueries.getValue(0, 2); // return 5\n
\n\n

Example 2:

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\nInput\n["SubrectangleQueries","getValue","updateSubrectangle","getValue","getValue","updateSubrectangle","getValue"]\n[[[[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]]\nOutput\n[null,1,null,100,100,null,20]\nExplanation\nSubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,1,1],[2,2,2],[3,3,3]]);\nsubrectangleQueries.getValue(0, 0); // return 1\nsubrectangleQueries.updateSubrectangle(0, 0, 2, 2, 100);\nsubrectangleQueries.getValue(0, 0); // return 100\nsubrectangleQueries.getValue(2, 2); // return 100\nsubrectangleQueries.updateSubrectangle(1, 1, 2, 2, 20);\nsubrectangleQueries.getValue(2, 2); // return 20\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "子矩形查询", "translatedContent": "

请你实现一个类 SubrectangleQueries ，它的构造函数的参数是一个 rows x cols 的矩形（这里用整数矩阵表示），并支持以下两种操作：

\n\n

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

\n\n\n\n

2. getValue(int row, int col)

\n\n\n\n

 

\n\n

示例 1：

\n\n
输入：\n["SubrectangleQueries","getValue","updateSubrectangle","getValue","getValue","updateSubrectangle","getValue","getValue"]\n[[[[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]]\n输出：\n[null,1,null,5,5,null,10,5]\n解释：\nSubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,2,1],[4,3,4],[3,2,1],[1,1,1]]);  \n// 初始的 (4x3) 矩形如下：\n// 1 2 1\n// 4 3 4\n// 3 2 1\n// 1 1 1\nsubrectangleQueries.getValue(0, 2); // 返回 1\nsubrectangleQueries.updateSubrectangle(0, 0, 3, 2, 5);\n// 此次更新后矩形变为：\n// 5 5 5\n// 5 5 5\n// 5 5 5\n// 5 5 5 \nsubrectangleQueries.getValue(0, 2); // 返回 5\nsubrectangleQueries.getValue(3, 1); // 返回 5\nsubrectangleQueries.updateSubrectangle(3, 0, 3, 2, 10);\n// 此次更新后矩形变为：\n// 5   5   5\n// 5   5   5\n// 5   5   5\n// 10  10  10 \nsubrectangleQueries.getValue(3, 1); // 返回 10\nsubrectangleQueries.getValue(0, 2); // 返回 5\n
\n\n

示例 2：

\n\n
输入：\n["SubrectangleQueries","getValue","updateSubrectangle","getValue","getValue","updateSubrectangle","getValue"]\n[[[[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]]\n输出：\n[null,1,null,100,100,null,20]\n解释：\nSubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,1,1],[2,2,2],[3,3,3]]);\nsubrectangleQueries.getValue(0, 0); // 返回 1\nsubrectangleQueries.updateSubrectangle(0, 0, 2, 2, 100);\nsubrectangleQueries.getValue(0, 0); // 返回 100\nsubrectangleQueries.getValue(2, 2); // 返回 100\nsubrectangleQueries.updateSubrectangle(1, 1, 2, 2, 20);\nsubrectangleQueries.getValue(2, 2); // 返回 20\n
\n\n

 

\n\n

提示：

\n\n\n", "isPaidOnly": false, "difficulty": "Medium", "likes": 31, "dislikes": 0, "isLiked": null, "similarQuestions": "[]", "contributors": [], "langToValidPlayground": "{\"cpp\": false, \"java\": false, \"python\": false, \"python3\": false, \"mysql\": false, \"mssql\": false, \"oraclesql\": false, \"c\": false, \"csharp\": false, \"javascript\": false, \"ruby\": false, \"bash\": false, \"swift\": false, \"golang\": false, \"scala\": false, \"html\": false, \"pythonml\": false, \"kotlin\": false, \"rust\": false, \"php\": false, \"typescript\": false, \"racket\": false, \"erlang\": false, \"elixir\": false}", "topicTags": [ { "name": "Design", "slug": "design", "translatedName": "设计", "__typename": "TopicTagNode" }, { "name": "Array", "slug": "array", "translatedName": "数组", "__typename": "TopicTagNode" }, { "name": "Matrix", "slug": "matrix", "translatedName": "矩阵", "__typename": "TopicTagNode" } ], "companyTagStats": null, "codeSnippets": [ { "lang": "C++", "langSlug": "cpp", "code": "class SubrectangleQueries {\npublic:\n SubrectangleQueries(vector>& rectangle) {\n\n }\n \n void updateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n\n }\n \n int getValue(int row, int col) {\n\n }\n};\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries* obj = new SubrectangleQueries(rectangle);\n * obj->updateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj->getValue(row,col);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Java", "langSlug": "java", "code": "class SubrectangleQueries {\n\n public SubrectangleQueries(int[][] rectangle) {\n\n }\n \n public void updateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n\n }\n \n public int getValue(int row, int col) {\n\n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries obj = new SubrectangleQueries(rectangle);\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj.getValue(row,col);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Python", "langSlug": "python", "code": "class SubrectangleQueries(object):\n\n def __init__(self, rectangle):\n \"\"\"\n :type rectangle: List[List[int]]\n \"\"\"\n\n\n def updateSubrectangle(self, row1, col1, row2, col2, newValue):\n \"\"\"\n :type row1: int\n :type col1: int\n :type row2: int\n :type col2: int\n :type newValue: int\n :rtype: None\n \"\"\"\n\n\n def getValue(self, row, col):\n \"\"\"\n :type row: int\n :type col: int\n :rtype: int\n \"\"\"\n\n\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries(rectangle)\n# obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n# param_2 = obj.getValue(row,col)", "__typename": "CodeSnippetNode" }, { "lang": "Python3", "langSlug": "python3", "code": "class SubrectangleQueries:\n\n def __init__(self, rectangle: List[List[int]]):\n\n\n def updateSubrectangle(self, row1: int, col1: int, row2: int, col2: int, newValue: int) -> None:\n\n\n def getValue(self, row: int, col: int) -> int:\n\n\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries(rectangle)\n# obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n# param_2 = obj.getValue(row,col)", "__typename": "CodeSnippetNode" }, { "lang": "C", "langSlug": "c", "code": "\n\n\ntypedef struct {\n\n} SubrectangleQueries;\n\n\nSubrectangleQueries* subrectangleQueriesCreate(int** rectangle, int rectangleSize, int* rectangleColSize) {\n\n}\n\nvoid subrectangleQueriesUpdateSubrectangle(SubrectangleQueries* obj, int row1, int col1, int row2, int col2, int newValue) {\n\n}\n\nint subrectangleQueriesGetValue(SubrectangleQueries* obj, int row, int col) {\n\n}\n\nvoid subrectangleQueriesFree(SubrectangleQueries* obj) {\n\n}\n\n/**\n * Your SubrectangleQueries struct will be instantiated and called as such:\n * SubrectangleQueries* obj = subrectangleQueriesCreate(rectangle, rectangleSize, rectangleColSize);\n * subrectangleQueriesUpdateSubrectangle(obj, row1, col1, row2, col2, newValue);\n \n * int param_2 = subrectangleQueriesGetValue(obj, row, col);\n \n * subrectangleQueriesFree(obj);\n*/", "__typename": "CodeSnippetNode" }, { "lang": "C#", "langSlug": "csharp", "code": "public class SubrectangleQueries {\n\n public SubrectangleQueries(int[][] rectangle) {\n\n }\n \n public void UpdateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n\n }\n \n public int GetValue(int row, int col) {\n\n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries obj = new SubrectangleQueries(rectangle);\n * obj.UpdateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj.GetValue(row,col);\n */", "__typename": "CodeSnippetNode" }, { "lang": "JavaScript", "langSlug": "javascript", "code": "/**\n * @param {number[][]} rectangle\n */\nvar SubrectangleQueries = function(rectangle) {\n\n};\n\n/** \n * @param {number} row1 \n * @param {number} col1 \n * @param {number} row2 \n * @param {number} col2 \n * @param {number} newValue\n * @return {void}\n */\nSubrectangleQueries.prototype.updateSubrectangle = function(row1, col1, row2, col2, newValue) {\n\n};\n\n/** \n * @param {number} row \n * @param {number} col\n * @return {number}\n */\nSubrectangleQueries.prototype.getValue = function(row, col) {\n\n};\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Ruby", "langSlug": "ruby", "code": "class SubrectangleQueries\n\n=begin\n :type rectangle: Integer[][]\n=end\n def initialize(rectangle)\n\n end\n\n\n=begin\n :type row1: Integer\n :type col1: Integer\n :type row2: Integer\n :type col2: Integer\n :type new_value: Integer\n :rtype: Void\n=end\n def update_subrectangle(row1, col1, row2, col2, new_value)\n\n end\n\n\n=begin\n :type row: Integer\n :type col: Integer\n :rtype: Integer\n=end\n def get_value(row, col)\n\n end\n\n\nend\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries.new(rectangle)\n# obj.update_subrectangle(row1, col1, row2, col2, new_value)\n# param_2 = obj.get_value(row, col)", "__typename": "CodeSnippetNode" }, { "lang": "Swift", "langSlug": "swift", "code": "\nclass SubrectangleQueries {\n\n init(_ rectangle: [[Int]]) {\n\n }\n \n func updateSubrectangle(_ row1: Int, _ col1: Int, _ row2: Int, _ col2: Int, _ newValue: Int) {\n\n }\n \n func getValue(_ row: Int, _ col: Int) -> Int {\n\n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * let obj = SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1, col1, row2, col2, newValue)\n * let ret_2: Int = obj.getValue(row, col)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Go", "langSlug": "golang", "code": "type SubrectangleQueries struct {\n\n}\n\n\nfunc Constructor(rectangle [][]int) SubrectangleQueries {\n\n}\n\n\nfunc (this *SubrectangleQueries) UpdateSubrectangle(row1 int, col1 int, row2 int, col2 int, newValue int) {\n\n}\n\n\nfunc (this *SubrectangleQueries) GetValue(row int, col int) int {\n\n}\n\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * obj := Constructor(rectangle);\n * obj.UpdateSubrectangle(row1,col1,row2,col2,newValue);\n * param_2 := obj.GetValue(row,col);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Scala", "langSlug": "scala", "code": "class SubrectangleQueries(_rectangle: Array[Array[Int]]) {\n\n def updateSubrectangle(row1: Int, col1: Int, row2: Int, col2: Int, newValue: Int) {\n\n }\n\n def getValue(row: Int, col: Int): Int = {\n\n }\n\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Kotlin", "langSlug": "kotlin", "code": "class SubrectangleQueries(rectangle: Array) {\n\n fun updateSubrectangle(row1: Int, col1: Int, row2: Int, col2: Int, newValue: Int) {\n\n }\n\n fun getValue(row: Int, col: Int): Int {\n\n }\n\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Rust", "langSlug": "rust", "code": "struct SubrectangleQueries {\n\n}\n\n\n/**\n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl SubrectangleQueries {\n\n fn new(rectangle: Vec>) -> Self {\n\n }\n \n fn update_subrectangle(&self, row1: i32, col1: i32, row2: i32, col2: i32, new_value: i32) {\n\n }\n \n fn get_value(&self, row: i32, col: i32) -> i32 {\n\n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * let obj = SubrectangleQueries::new(rectangle);\n * obj.update_subrectangle(row1, col1, row2, col2, newValue);\n * let ret_2: i32 = obj.get_value(row, col);\n */", "__typename": "CodeSnippetNode" }, { "lang": "PHP", "langSlug": "php", "code": "class SubrectangleQueries {\n /**\n * @param Integer[][] $rectangle\n */\n function __construct($rectangle) {\n\n }\n\n /**\n * @param Integer $row1\n * @param Integer $col1\n * @param Integer $row2\n * @param Integer $col2\n * @param Integer $newValue\n * @return NULL\n */\n function updateSubrectangle($row1, $col1, $row2, $col2, $newValue) {\n\n }\n\n /**\n * @param Integer $row\n * @param Integer $col\n * @return Integer\n */\n function getValue($row, $col) {\n\n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * $obj = SubrectangleQueries($rectangle);\n * $obj->updateSubrectangle($row1, $col1, $row2, $col2, $newValue);\n * $ret_2 = $obj->getValue($row, $col);\n */", "__typename": "CodeSnippetNode" }, { "lang": "TypeScript", "langSlug": "typescript", "code": "class SubrectangleQueries {\n constructor(rectangle: number[][]) {\n\n }\n\n updateSubrectangle(row1: number, col1: number, row2: number, col2: number, newValue: number): void {\n\n }\n\n getValue(row: number, col: number): number {\n\n }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Racket", "langSlug": "racket", "code": "(define subrectangle-queries%\n (class object%\n (super-new)\n\n ; rectangle : (listof (listof exact-integer?))\n (init-field\n rectangle)\n \n ; update-subrectangle : exact-integer? exact-integer? exact-integer? exact-integer? exact-integer? -> void?\n (define/public (update-subrectangle row1 col1 row2 col2 newValue)\n\n )\n ; get-value : exact-integer? exact-integer? -> exact-integer?\n (define/public (get-value row col)\n\n )))\n\n;; Your subrectangle-queries% object will be instantiated and called as such:\n;; (define obj (new subrectangle-queries% [rectangle rectangle]))\n;; (send obj update-subrectangle row1 col1 row2 col2 new-value)\n;; (define param_2 (send obj get-value row col))", "__typename": "CodeSnippetNode" }, { "lang": "Erlang", "langSlug": "erlang", "code": "-spec subrectangle_queries_init_(Rectangle :: [[integer()]]) -> any().\nsubrectangle_queries_init_(Rectangle) ->\n .\n\n-spec subrectangle_queries_update_subrectangle(Row1 :: integer(), Col1 :: integer(), Row2 :: integer(), Col2 :: integer(), NewValue :: integer()) -> any().\nsubrectangle_queries_update_subrectangle(Row1, Col1, Row2, Col2, NewValue) ->\n .\n\n-spec subrectangle_queries_get_value(Row :: integer(), Col :: integer()) -> integer().\nsubrectangle_queries_get_value(Row, Col) ->\n .\n\n\n%% Your functions will be called as such:\n%% subrectangle_queries_init_(Rectangle),\n%% subrectangle_queries_update_subrectangle(Row1, Col1, Row2, Col2, NewValue),\n%% Param_2 = subrectangle_queries_get_value(Row, Col),\n\n%% subrectangle_queries_init_ will be called before every test case, in which you can do some necessary initializations.", "__typename": "CodeSnippetNode" }, { "lang": "Elixir", "langSlug": "elixir", "code": "defmodule SubrectangleQueries do\n @spec init_(rectangle :: [[integer]]) :: any\n def init_(rectangle) do\n\n end\n\n @spec update_subrectangle(row1 :: integer, col1 :: integer, row2 :: integer, col2 :: integer, new_value :: integer) :: any\n def update_subrectangle(row1, col1, row2, col2, new_value) do\n\n end\n\n @spec get_value(row :: integer, col :: integer) :: integer\n def get_value(row, col) do\n\n end\nend\n\n# Your functions will be called as such:\n# SubrectangleQueries.init_(rectangle)\n# SubrectangleQueries.update_subrectangle(row1, col1, row2, col2, new_value)\n# param_2 = SubrectangleQueries.get_value(row, col)\n\n# SubrectangleQueries.init_ will be called before every test case, in which you can do some necessary initializations.", "__typename": "CodeSnippetNode" } ], "stats": "{\"totalAccepted\": \"13.8K\", \"totalSubmission\": \"15.9K\", \"totalAcceptedRaw\": 13755, \"totalSubmissionRaw\": 15920, \"acRate\": \"86.4%\"}", "hints": [ "Use brute force to update a rectangle and, response to the queries in O(1)." ], "solution": null, "status": null, "sampleTestCase": "[\"SubrectangleQueries\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\"]\r\n[[[[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]]\r", "metaData": "{\n \"classname\": \"SubrectangleQueries\",\n \"constructor\": {\n \"params\": [\n {\n \"type\": \"integer[][]\",\n \"name\": \"rectangle\"\n }\n ]\n },\n \"methods\": [\n {\n \"params\": [\n {\n \"type\": \"integer\",\n \"name\": \"row1\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"col1\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"row2\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"col2\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"newValue\"\n }\n ],\n \"name\": \"updateSubrectangle\",\n \"return\": {\n \"type\": \"void\"\n }\n },\n {\n \"params\": [\n {\n \"type\": \"integer\",\n \"name\": \"row\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"col\"\n }\n ],\n \"name\": \"getValue\",\n \"return\": {\n \"type\": 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\\r\\nstruct hash_entry {\\r\\n    int id;            \\/* we'll use this field as the key *\\/\\r\\n    char name[10];\\r\\n    UT_hash_handle hh; \\/* makes this structure hashable *\\/\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry *s) {\\r\\n    HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n<\\/pre>\\r\\n<\\/p>\\r\\n\\r\\n
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PHP 8.1<\\/code>.<\\/p>\\r\\n\\r\\n
With bcmath module.<\\/p>\"],\"typescript\":[\"TypeScript\",\"
TypeScript 4.5.4<\\/p>\\r\\n\\r\\n
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