{ "data": { "question": { "questionId": "915", "questionFrontendId": "478", "boundTopicId": null, "title": "Generate Random Point in a Circle", "titleSlug": "generate-random-point-in-a-circle", "content": "

Given the radius and the position of the center of a circle, implement the function randPoint which generates a uniform random point inside the circle.

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Implement the Solution class:

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Example 1:

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\nInput\n["Solution", "randPoint", "randPoint", "randPoint"]\n[[1.0, 0.0, 0.0], [], [], []]\nOutput\n[null, [-0.02493, -0.38077], [0.82314, 0.38945], [0.36572, 0.17248]]\n\nExplanation\nSolution solution = new Solution(1.0, 0.0, 0.0);\nsolution.randPoint(); // return [-0.02493, -0.38077]\nsolution.randPoint(); // return [0.82314, 0.38945]\nsolution.randPoint(); // return [0.36572, 0.17248]\n
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Constraints:

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"langSlug": "cpp", "code": "class Solution {\npublic:\n Solution(double radius, double x_center, double y_center) {\n \n }\n \n vector randPoint() {\n \n }\n};\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution* obj = new Solution(radius, x_center, y_center);\n * vector param_1 = obj->randPoint();\n */", "__typename": "CodeSnippetNode" }, { "lang": "Java", "langSlug": "java", "code": "class Solution {\n\n public Solution(double radius, double x_center, double y_center) {\n \n }\n \n public double[] randPoint() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution obj = new Solution(radius, x_center, y_center);\n * double[] param_1 = obj.randPoint();\n */", "__typename": "CodeSnippetNode" }, { "lang": "Python", "langSlug": "python", "code": "class Solution(object):\n\n def __init__(self, radius, x_center, y_center):\n \"\"\"\n :type radius: float\n :type x_center: float\n :type y_center: float\n \"\"\"\n \n\n def randPoint(self):\n \"\"\"\n :rtype: List[float]\n \"\"\"\n \n\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution(radius, x_center, y_center)\n# param_1 = obj.randPoint()", "__typename": "CodeSnippetNode" }, { "lang": "Python3", "langSlug": "python3", "code": "class Solution:\n\n def __init__(self, radius: float, x_center: float, y_center: float):\n \n\n def randPoint(self) -> List[float]:\n \n\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution(radius, x_center, y_center)\n# param_1 = obj.randPoint()", "__typename": "CodeSnippetNode" }, { "lang": "C", "langSlug": "c", "code": "\n\n\ntypedef struct {\n \n} Solution;\n\n\nSolution* solutionCreate(double radius, double x_center, double y_center) {\n \n}\n\ndouble* solutionRandPoint(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(radius, x_center, y_center);\n * double* param_1 = solutionRandPoint(obj, retSize);\n \n * solutionFree(obj);\n*/", "__typename": "CodeSnippetNode" }, { "lang": "C#", "langSlug": "csharp", "code": "public class Solution {\n\n public Solution(double radius, double x_center, double y_center) {\n \n }\n \n public double[] RandPoint() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution obj = new Solution(radius, x_center, y_center);\n * double[] param_1 = obj.RandPoint();\n */", "__typename": "CodeSnippetNode" }, { "lang": "JavaScript", "langSlug": "javascript", "code": "/**\n * @param {number} radius\n * @param {number} x_center\n * @param {number} y_center\n */\nvar Solution = function(radius, x_center, y_center) {\n \n};\n\n/**\n * @return {number[]}\n */\nSolution.prototype.randPoint = function() {\n \n};\n\n/** \n * Your Solution object will be instantiated and called as such:\n * var obj = new Solution(radius, x_center, y_center)\n * var param_1 = obj.randPoint()\n */", "__typename": "CodeSnippetNode" }, { "lang": "Ruby", "langSlug": "ruby", "code": "class Solution\n\n=begin\n :type radius: Float\n :type x_center: Float\n :type y_center: Float\n=end\n def initialize(radius, x_center, y_center)\n \n end\n\n\n=begin\n :rtype: Float[]\n=end\n def rand_point()\n \n end\n\n\nend\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution.new(radius, x_center, y_center)\n# param_1 = obj.rand_point()", "__typename": "CodeSnippetNode" }, { "lang": "Swift", "langSlug": "swift", "code": "\nclass Solution {\n\n init(_ radius: Double, _ x_center: Double, _ y_center: Double) {\n \n }\n \n func randPoint() -> [Double] {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * let obj = Solution(radius, x_center, y_center)\n * let ret_1: [Double] = obj.randPoint()\n */", "__typename": "CodeSnippetNode" }, { "lang": "Go", "langSlug": "golang", "code": "type Solution struct {\n \n}\n\n\nfunc Constructor(radius float64, x_center float64, y_center float64) Solution {\n \n}\n\n\nfunc (this *Solution) RandPoint() []float64 {\n \n}\n\n\n/**\n * Your Solution object will be instantiated and called as such:\n * obj := Constructor(radius, x_center, y_center);\n * param_1 := obj.RandPoint();\n */", "__typename": "CodeSnippetNode" }, { "lang": "Scala", "langSlug": "scala", "code": "class Solution(_radius: Double, _x_center: Double, _y_center: Double) {\n\n def randPoint(): Array[Double] = {\n \n }\n\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * var obj = new Solution(radius, x_center, y_center)\n * var param_1 = obj.randPoint()\n */", "__typename": "CodeSnippetNode" }, { "lang": "Kotlin", "langSlug": "kotlin", "code": "class Solution(radius: Double, x_center: Double, y_center: Double) {\n\n fun randPoint(): DoubleArray {\n \n }\n\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * var obj = Solution(radius, x_center, y_center)\n * var param_1 = obj.randPoint()\n */", "__typename": "CodeSnippetNode" }, { "lang": "Rust", "langSlug": "rust", "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(radius: f64, x_center: f64, y_center: f64) -> Self {\n \n }\n \n fn rand_point(&self) -> Vec {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * let obj = Solution::new(radius, x_center, y_center);\n * let ret_1: Vec = obj.rand_point();\n */", "__typename": "CodeSnippetNode" }, { "lang": "PHP", "langSlug": "php", "code": "class Solution {\n /**\n * @param Float $radius\n * @param Float $x_center\n * @param Float $y_center\n */\n function __construct($radius, $x_center, $y_center) {\n \n }\n \n /**\n * @return Float[]\n */\n function randPoint() {\n \n }\n}\n\n/**\n * Your Solution object will be 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y_center]))\n;; (define param_1 (send obj rand-point))", "__typename": "CodeSnippetNode" }, { "lang": "Erlang", "langSlug": "erlang", "code": "-spec solution_init_(Radius :: float(), X_center :: float(), Y_center :: float()) -> any().\nsolution_init_(Radius, X_center, Y_center) ->\n .\n\n-spec solution_rand_point() -> [float()].\nsolution_rand_point() ->\n .\n\n\n%% Your functions will be called as such:\n%% solution_init_(Radius, X_center, Y_center),\n%% Param_1 = solution_rand_point(),\n\n%% solution_init_ will be called before every test case, in which you can do some necessary initializations.", "__typename": "CodeSnippetNode" }, { "lang": "Elixir", "langSlug": "elixir", "code": "defmodule Solution do\n @spec init_(radius :: float, x_center :: float, y_center :: float) :: any\n def init_(radius, x_center, y_center) do\n\n end\n\n @spec rand_point() :: [float]\n def rand_point() do\n\n end\nend\n\n# Your functions will be called as such:\n# Solution.init_(radius, x_center, 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