mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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189 lines
22 KiB
JSON
189 lines
22 KiB
JSON
{
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"data": {
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"question": {
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"questionId": "914",
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"questionFrontendId": "497",
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"boundTopicId": null,
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"title": "Random Point in Non-overlapping Rectangles",
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"titleSlug": "random-point-in-non-overlapping-rectangles",
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"content": "<p>You are given an array of non-overlapping axis-aligned rectangles <code>rects</code> where <code>rects[i] = [a<sub>i</sub>, b<sub>i</sub>, x<sub>i</sub>, y<sub>i</sub>]</code> indicates that <code>(a<sub>i</sub>, b<sub>i</sub>)</code> is the bottom-left corner point of the <code>i<sup>th</sup></code> rectangle and <code>(x<sub>i</sub>, y<sub>i</sub>)</code> is the top-right corner point of the <code>i<sup>th</sup></code> rectangle. Design an algorithm to pick a random integer point inside the space covered by one of the given rectangles. A point on the perimeter of a rectangle is included in the space covered by the rectangle.</p>\n\n<p>Any integer point inside the space covered by one of the given rectangles should be equally likely to be returned.</p>\n\n<p><strong>Note</strong> that an integer point is a point that has integer coordinates.</p>\n\n<p>Implement the <code>Solution</code> class:</p>\n\n<ul>\n\t<li><code>Solution(int[][] rects)</code> Initializes the object with the given rectangles <code>rects</code>.</li>\n\t<li><code>int[] pick()</code> Returns a random integer point <code>[u, v]</code> inside the space covered by one of the given rectangles.</li>\n</ul>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/07/24/lc-pickrandomrec.jpg\" style=\"width: 419px; height: 539px;\" />\n<pre>\n<strong>Input</strong>\n["Solution", "pick", "pick", "pick", "pick", "pick"]\n[[[[-2, -2, 1, 1], [2, 2, 4, 6]]], [], [], [], [], []]\n<strong>Output</strong>\n[null, [1, -2], [1, -1], [-1, -2], [-2, -2], [0, 0]]\n\n<strong>Explanation</strong>\nSolution solution = new Solution([[-2, -2, 1, 1], [2, 2, 4, 6]]);\nsolution.pick(); // return [1, -2]\nsolution.pick(); // return [1, -1]\nsolution.pick(); // return [-1, -2]\nsolution.pick(); // return [-2, -2]\nsolution.pick(); // return [0, 0]\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= rects.length <= 100</code></li>\n\t<li><code>rects[i].length == 4</code></li>\n\t<li><code>-10<sup>9</sup> <= a<sub>i</sub> < x<sub>i</sub> <= 10<sup>9</sup></code></li>\n\t<li><code>-10<sup>9</sup> <= b<sub>i</sub> < y<sub>i</sub> <= 10<sup>9</sup></code></li>\n\t<li><code>x<sub>i</sub> - a<sub>i</sub> <= 2000</code></li>\n\t<li><code>y<sub>i</sub> - b<sub>i</sub> <= 2000</code></li>\n\t<li>All the rectangles do not overlap.</li>\n\t<li>At most <code>10<sup>4</sup></code> calls will be made to <code>pick</code>.</li>\n</ul>\n",
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"exampleTestcases": "[\"Solution\",\"pick\",\"pick\",\"pick\",\"pick\",\"pick\"]\n[[[[-2,-2,1,1],[2,2,4,6]]],[],[],[],[],[]]",
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"lang": "C++",
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"langSlug": "cpp",
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"code": "class Solution {\npublic:\n Solution(vector<vector<int>>& rects) {\n \n }\n \n vector<int> pick() {\n \n }\n};\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution* obj = new Solution(rects);\n * vector<int> param_1 = obj->pick();\n */",
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"code": "class Solution {\n\n public Solution(int[][] rects) {\n \n }\n \n public int[] pick() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution obj = new Solution(rects);\n * int[] param_1 = obj.pick();\n */",
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"lang": "Python",
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"code": "class Solution(object):\n\n def __init__(self, rects):\n \"\"\"\n :type rects: List[List[int]]\n \"\"\"\n \n\n def pick(self):\n \"\"\"\n :rtype: List[int]\n \"\"\"\n \n\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution(rects)\n# param_1 = obj.pick()",
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"code": "class Solution:\n\n def __init__(self, rects: List[List[int]]):\n \n\n def pick(self) -> List[int]:\n \n\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution(rects)\n# param_1 = obj.pick()",
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"lang": "C",
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"code": "\n\n\ntypedef struct {\n \n} Solution;\n\n\nSolution* solutionCreate(int** rects, int rectsSize, int* rectsColSize) {\n \n}\n\nint* solutionPick(Solution* obj, int* retSize) {\n \n}\n\nvoid solutionFree(Solution* obj) {\n \n}\n\n/**\n * Your Solution struct will be instantiated and called as such:\n * Solution* obj = solutionCreate(rects, rectsSize, rectsColSize);\n * int* param_1 = solutionPick(obj, retSize);\n \n * solutionFree(obj);\n*/",
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"lang": "C#",
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"langSlug": "csharp",
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"code": "public class Solution {\n\n public Solution(int[][] rects) {\n \n }\n \n public int[] Pick() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution obj = new Solution(rects);\n * int[] param_1 = obj.Pick();\n */",
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"lang": "JavaScript",
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"code": "/**\n * @param {number[][]} rects\n */\nvar Solution = function(rects) {\n \n};\n\n/**\n * @return {number[]}\n */\nSolution.prototype.pick = function() {\n \n};\n\n/** \n * Your Solution object will be instantiated and called as such:\n * var obj = new Solution(rects)\n * var param_1 = obj.pick()\n */",
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"lang": "Ruby",
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"code": "class Solution\n\n=begin\n :type rects: Integer[][]\n=end\n def initialize(rects)\n \n end\n\n\n=begin\n :rtype: Integer[]\n=end\n def pick()\n \n end\n\n\nend\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution.new(rects)\n# param_1 = obj.pick()",
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"lang": "Swift",
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"code": "\nclass Solution {\n\n init(_ rects: [[Int]]) {\n \n }\n \n func pick() -> [Int] {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * let obj = Solution(rects)\n * let ret_1: [Int] = obj.pick()\n */",
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"lang": "Go",
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"langSlug": "golang",
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"code": "type Solution struct {\n \n}\n\n\nfunc Constructor(rects [][]int) Solution {\n \n}\n\n\nfunc (this *Solution) Pick() []int {\n \n}\n\n\n/**\n * Your Solution object will be instantiated and called as such:\n * obj := Constructor(rects);\n * param_1 := obj.Pick();\n */",
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"lang": "Scala",
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"code": "class Solution(_rects: Array[Array[Int]]) {\n\n def pick(): Array[Int] = {\n \n }\n\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * var obj = new Solution(rects)\n * var param_1 = obj.pick()\n */",
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"lang": "Kotlin",
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"code": "class Solution(rects: Array<IntArray>) {\n\n fun pick(): IntArray {\n \n }\n\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * var obj = Solution(rects)\n * var param_1 = obj.pick()\n */",
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"lang": "Rust",
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"langSlug": "rust",
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"code": "struct Solution {\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 Solution {\n\n fn new(rects: Vec<Vec<i32>>) -> Self {\n \n }\n \n fn pick(&self) -> Vec<i32> {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * let obj = Solution::new(rects);\n * let ret_1: Vec<i32> = obj.pick();\n */",
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"lang": "PHP",
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"code": "class Solution {\n /**\n * @param Integer[][] $rects\n */\n function __construct($rects) {\n \n }\n \n /**\n * @return Integer[]\n */\n function pick() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * $obj = Solution($rects);\n * $ret_1 = $obj->pick();\n */",
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"lang": "TypeScript",
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"code": "class Solution {\n constructor(rects: number[][]) {\n\n }\n\n pick(): number[] {\n\n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * var obj = new Solution(rects)\n * var param_1 = obj.pick()\n */",
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"code": "(define solution%\n (class object%\n (super-new)\n\n ; rects : (listof (listof exact-integer?))\n (init-field\n rects)\n \n ; pick : -> (listof exact-integer?)\n (define/public (pick)\n\n )))\n\n;; Your solution% object will be instantiated and called as such:\n;; (define obj (new solution% [rects rects]))\n;; (define param_1 (send obj pick))",
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"code": "-spec solution_init_(Rects :: [[integer()]]) -> any().\nsolution_init_(Rects) ->\n .\n\n-spec solution_pick() -> [integer()].\nsolution_pick() ->\n .\n\n\n%% Your functions will be called as such:\n%% solution_init_(Rects),\n%% Param_1 = solution_pick(),\n\n%% solution_init_ will be called before every test case, in which you can do some necessary initializations.",
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"code": "defmodule Solution do\n @spec init_(rects :: [[integer]]) :: any\n def init_(rects) do\n\n end\n\n @spec pick() :: [integer]\n def pick() do\n\n end\nend\n\n# Your functions will be called as such:\n# Solution.init_(rects)\n# param_1 = Solution.pick()\n\n# Solution.init_ will be called before every test case, in which you can do some necessary initializations.",
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"adminUrl": null,
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"challengeQuestion": null,
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"__typename": "QuestionNode"
|
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}
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}
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} |