{
    "data": {
        "question": {
            "questionId": "2023",
            "questionFrontendId": "1912",
            "boundTopicId": null,
            "title": "Design Movie Rental System",
            "titleSlug": "design-movie-rental-system",
            "content": "<p>You have a movie renting company consisting of <code>n</code> shops. You want to implement a renting system that supports searching for, booking, and returning movies. The system should also support generating a report of the currently rented movies.</p>\r\n\r\n<p>Each movie is given as a 2D integer array <code>entries</code> where <code>entries[i] = [shop<sub>i</sub>, movie<sub>i</sub>, price<sub>i</sub>]</code> indicates that there is a copy of movie <code>movie<sub>i</sub></code> at shop <code>shop<sub>i</sub></code> with a rental price of <code>price<sub>i</sub></code>. Each shop carries <strong>at most one</strong> copy of a movie <code>movie<sub>i</sub></code>.</p>\r\n\r\n<p>The system should support the following functions:</p>\r\n\r\n<ul>\r\n\t<li><strong>Search</strong>: Finds the <strong>cheapest 5 shops</strong> that have an <strong>unrented copy</strong> of a given movie. The shops should be sorted by <strong>price</strong> in ascending order, and in case of a tie, the one with the <strong>smaller </strong><code>shop<sub>i</sub></code> should appear first. If there are less than 5 matching shops, then all of them should be returned. If no shop has an unrented copy, then an empty list should be returned.</li>\r\n\t<li><strong>Rent</strong>: Rents an <strong>unrented copy</strong> of a given movie from a given shop.</li>\r\n\t<li><strong>Drop</strong>: Drops off a <strong>previously rented copy</strong> of a given movie at a given shop.</li>\r\n\t<li><strong>Report</strong>: Returns the <strong>cheapest 5 rented movies</strong> (possibly of the same movie ID) as a 2D list <code>res</code> where <code>res[j] = [shop<sub>j</sub>, movie<sub>j</sub>]</code> describes that the <code>j<sup>th</sup></code> cheapest rented movie <code>movie<sub>j</sub></code> was rented from the shop <code>shop<sub>j</sub></code>. The movies in <code>res</code> should be sorted by <strong>price </strong>in ascending order, and in case of a tie, the one with the <strong>smaller </strong><code>shop<sub>j</sub></code> should appear first, and if there is still tie, the one with the <strong>smaller </strong><code>movie<sub>j</sub></code> should appear first. If there are fewer than 5 rented movies, then all of them should be returned. If no movies are currently being rented, then an empty list should be returned.</li>\r\n</ul>\r\n\r\n<p>Implement the <code>MovieRentingSystem</code> class:</p>\r\n\r\n<ul>\r\n\t<li><code>MovieRentingSystem(int n, int[][] entries)</code> Initializes the <code>MovieRentingSystem</code> object with <code>n</code> shops and the movies in <code>entries</code>.</li>\r\n\t<li><code>List&lt;Integer&gt; search(int movie)</code> Returns a list of shops that have an <strong>unrented copy</strong> of the given <code>movie</code> as described above.</li>\r\n\t<li><code>void rent(int shop, int movie)</code> Rents the given <code>movie</code> from the given <code>shop</code>.</li>\r\n\t<li><code>void drop(int shop, int movie)</code> Drops off a previously rented <code>movie</code> at the given <code>shop</code>.</li>\r\n\t<li><code>List&lt;List&lt;Integer&gt;&gt; report()</code> Returns a list of cheapest <strong>rented</strong> movies as described above.</li>\r\n</ul>\r\n\r\n<p><strong>Note:</strong> The test cases will be generated such that <code>rent</code> will only be called if the shop has an <strong>unrented</strong> copy of the movie, and <code>drop</code> will only be called if the shop had <strong>previously rented</strong> out the movie.</p>\r\n\r\n<p>&nbsp;</p>\r\n<p><strong>Example 1:</strong></p>\r\n\r\n<pre>\r\n<strong>Input</strong>\r\n[&quot;MovieRentingSystem&quot;, &quot;search&quot;, &quot;rent&quot;, &quot;rent&quot;, &quot;report&quot;, &quot;drop&quot;, &quot;search&quot;]\r\n[[3, [[0, 1, 5], [0, 2, 6], [0, 3, 7], [1, 1, 4], [1, 2, 7], [2, 1, 5]]], [1], [0, 1], [1, 2], [], [1, 2], [2]]\r\n<strong>Output</strong>\r\n[null, [1, 0, 2], null, null, [[0, 1], [1, 2]], null, [0, 1]]\r\n\r\n<strong>Explanation</strong>\r\nMovieRentingSystem movieRentingSystem = new MovieRentingSystem(3, [[0, 1, 5], [0, 2, 6], [0, 3, 7], [1, 1, 4], [1, 2, 7], [2, 1, 5]]);\r\nmovieRentingSystem.search(1);  // return [1, 0, 2], Movies of ID 1 are unrented at shops 1, 0, and 2. Shop 1 is cheapest; shop 0 and 2 are the same price, so order by shop number.\r\nmovieRentingSystem.rent(0, 1); // Rent movie 1 from shop 0. Unrented movies at shop 0 are now [2,3].\r\nmovieRentingSystem.rent(1, 2); // Rent movie 2 from shop 1. Unrented movies at shop 1 are now [1].\r\nmovieRentingSystem.report();   // return [[0, 1], [1, 2]]. Movie 1 from shop 0 is cheapest, followed by movie 2 from shop 1.\r\nmovieRentingSystem.drop(1, 2); // Drop off movie 2 at shop 1. Unrented movies at shop 1 are now [1,2].\r\nmovieRentingSystem.search(2);  // return [0, 1]. Movies of ID 2 are unrented at shops 0 and 1. Shop 0 is cheapest, followed by shop 1.\r\n</pre>\r\n\r\n<p>&nbsp;</p>\r\n<p><strong>Constraints:</strong></p>\r\n\r\n<ul>\r\n\t<li><code>1 &lt;= n &lt;= 3 * 10<sup>5</sup></code></li>\r\n\t<li><code>1 &lt;= entries.length &lt;= 10<sup>5</sup></code></li>\r\n\t<li><code>0 &lt;= shop<sub>i</sub> &lt; n</code></li>\r\n\t<li><code>1 &lt;= movie<sub>i</sub>, price<sub>i</sub> &lt;= 10<sup>4</sup></code></li>\r\n\t<li>Each shop carries <strong>at most one</strong> copy of a movie <code>movie<sub>i</sub></code>.</li>\r\n\t<li>At most <code>10<sup>5</sup></code> calls <strong>in total</strong> will be made to <code>search</code>, <code>rent</code>, <code>drop</code> and <code>report</code>.</li>\r\n</ul>",
            "translatedTitle": null,
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            "isPaidOnly": false,
            "difficulty": "Hard",
            "likes": 138,
            "dislikes": 27,
            "isLiked": null,
            "similarQuestions": "[]",
            "exampleTestcases": "[\"MovieRentingSystem\",\"search\",\"rent\",\"rent\",\"report\",\"drop\",\"search\"]\n[[3,[[0,1,5],[0,2,6],[0,3,7],[1,1,4],[1,2,7],[2,1,5]]],[1],[0,1],[1,2],[],[1,2],[2]]",
            "categoryTitle": "Algorithms",
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            "codeSnippets": [
                {
                    "lang": "C++",
                    "langSlug": "cpp",
                    "code": "class MovieRentingSystem {\r\npublic:\r\n    MovieRentingSystem(int n, vector<vector<int>>& entries) {\r\n          \r\n    }\r\n    \r\n    vector<int> search(int movie) {\r\n        \r\n    }\r\n    \r\n    void rent(int shop, int movie) {\r\n        \r\n    }\r\n    \r\n    void drop(int shop, int movie) {\r\n        \r\n    }\r\n    \r\n    vector<vector<int>> report() {\r\n        \r\n    }\r\n};\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * MovieRentingSystem* obj = new MovieRentingSystem(n, entries);\r\n * vector<int> param_1 = obj->search(movie);\r\n * obj->rent(shop,movie);\r\n * obj->drop(shop,movie);\r\n * vector<vector<int>> param_4 = obj->report();\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Java",
                    "langSlug": "java",
                    "code": "class MovieRentingSystem {\r\n\r\n    public MovieRentingSystem(int n, int[][] entries) {\r\n        \r\n    }\r\n    \r\n    public List<Integer> search(int movie) {\r\n        \r\n    }\r\n    \r\n    public void rent(int shop, int movie) {\r\n        \r\n    }\r\n    \r\n    public void drop(int shop, int movie) {\r\n        \r\n    }\r\n    \r\n    public List<List<Integer>> report() {\r\n        \r\n    }\r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * MovieRentingSystem obj = new MovieRentingSystem(n, entries);\r\n * List<Integer> param_1 = obj.search(movie);\r\n * obj.rent(shop,movie);\r\n * obj.drop(shop,movie);\r\n * List<List<Integer>> param_4 = obj.report();\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python",
                    "langSlug": "python",
                    "code": "class MovieRentingSystem(object):\r\n\r\n    def __init__(self, n, entries):\r\n        \"\"\"\r\n        :type n: int\r\n        :type entries: List[List[int]]\r\n        \"\"\"\r\n        \r\n\r\n    def search(self, movie):\r\n        \"\"\"\r\n        :type movie: int\r\n        :rtype: List[int]\r\n        \"\"\"\r\n        \r\n\r\n    def rent(self, shop, movie):\r\n        \"\"\"\r\n        :type shop: int\r\n        :type movie: int\r\n        :rtype: None\r\n        \"\"\"\r\n        \r\n\r\n    def drop(self, shop, movie):\r\n        \"\"\"\r\n        :type shop: int\r\n        :type movie: int\r\n        :rtype: None\r\n        \"\"\"\r\n        \r\n\r\n    def report(self):\r\n        \"\"\"\r\n        :rtype: List[List[int]]\r\n        \"\"\"\r\n        \r\n\r\n\r\n# Your MovieRentingSystem object will be instantiated and called as such:\r\n# obj = MovieRentingSystem(n, entries)\r\n# param_1 = obj.search(movie)\r\n# obj.rent(shop,movie)\r\n# obj.drop(shop,movie)\r\n# param_4 = obj.report()",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python3",
                    "langSlug": "python3",
                    "code": "class MovieRentingSystem:\r\n\r\n    def __init__(self, n: int, entries: List[List[int]]):\r\n        \r\n\r\n    def search(self, movie: int) -> List[int]:\r\n        \r\n\r\n    def rent(self, shop: int, movie: int) -> None:\r\n        \r\n\r\n    def drop(self, shop: int, movie: int) -> None:\r\n        \r\n\r\n    def report(self) -> List[List[int]]:\r\n        \r\n\r\n\r\n# Your MovieRentingSystem object will be instantiated and called as such:\r\n# obj = MovieRentingSystem(n, entries)\r\n# param_1 = obj.search(movie)\r\n# obj.rent(shop,movie)\r\n# obj.drop(shop,movie)\r\n# param_4 = obj.report()",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C",
                    "langSlug": "c",
                    "code": "typedef struct {\r\n    \r\n} MovieRentingSystem;\r\n\r\n\r\nMovieRentingSystem* movieRentingSystemCreate(int n, int** entries, int entriesSize, int* entriesColSize) {\r\n    \r\n}\r\n\r\nint* movieRentingSystemSearch(MovieRentingSystem* obj, int movie, int* retSize) {\r\n  \r\n}\r\n\r\nvoid movieRentingSystemRent(MovieRentingSystem* obj, int shop, int movie) {\r\n  \r\n}\r\n\r\nvoid movieRentingSystemDrop(MovieRentingSystem* obj, int shop, int movie) {\r\n  \r\n}\r\n\r\nint** movieRentingSystemReport(MovieRentingSystem* obj, int* retSize, int** retColSize) {\r\n  \r\n}\r\n\r\nvoid movieRentingSystemFree(MovieRentingSystem* obj) {\r\n    \r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem struct will be instantiated and called as such:\r\n * MovieRentingSystem* obj = movieRentingSystemCreate(n, entries, entriesSize, entriesColSize);\r\n * int* param_1 = movieRentingSystemSearch(obj, movie, retSize);\r\n \r\n * movieRentingSystemRent(obj, shop, movie);\r\n \r\n * movieRentingSystemDrop(obj, shop, movie);\r\n \r\n * int** param_4 = movieRentingSystemReport(obj, retSize, retColSize);\r\n \r\n * movieRentingSystemFree(obj);\r\n*/",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C#",
                    "langSlug": "csharp",
                    "code": "public class MovieRentingSystem {\r\n\r\n    public MovieRentingSystem(int n, int[][] entries) {\r\n          \r\n    }\r\n    \r\n    public IList<int> Search(int movie) {\r\n        \r\n    }\r\n    \r\n    public void Rent(int shop, int movie) {\r\n        \r\n    }\r\n    \r\n    public void Drop(int shop, int movie) {\r\n        \r\n    }\r\n    \r\n    public IList<IList<int>> Report() {\r\n        \r\n    }\r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * MovieRentingSystem obj = new MovieRentingSystem(n, entries);\r\n * IList<int> param_1 = obj.Search(movie);\r\n * obj.Rent(shop,movie);\r\n * obj.Drop(shop,movie);\r\n * IList<IList<int>> param_4 = obj.Report();\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "JavaScript",
                    "langSlug": "javascript",
                    "code": "/**\r\n * @param {number} n\r\n * @param {number[][]} entries\r\n */\r\nvar MovieRentingSystem = function(n, entries) {\r\n    \r\n};\r\n\r\n/** \r\n * @param {number} movie\r\n * @return {number[]}\r\n */\r\nMovieRentingSystem.prototype.search = function(movie) {\r\n    \r\n};\r\n\r\n/** \r\n * @param {number} shop \r\n * @param {number} movie\r\n * @return {void}\r\n */\r\nMovieRentingSystem.prototype.rent = function(shop, movie) {\r\n    \r\n};\r\n\r\n/** \r\n * @param {number} shop \r\n * @param {number} movie\r\n * @return {void}\r\n */\r\nMovieRentingSystem.prototype.drop = function(shop, movie) {\r\n    \r\n};\r\n\r\n/**\r\n * @return {number[][]}\r\n */\r\nMovieRentingSystem.prototype.report = function() {\r\n    \r\n};\r\n\r\n/** \r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * var obj = new MovieRentingSystem(n, entries)\r\n * var param_1 = obj.search(movie)\r\n * obj.rent(shop,movie)\r\n * obj.drop(shop,movie)\r\n * var param_4 = obj.report()\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Ruby",
                    "langSlug": "ruby",
                    "code": "class MovieRentingSystem\r\n\r\n=begin\r\n    :type n: Integer\r\n    :type entries: Integer[][]\r\n=end\r\n    def initialize(n, entries)\r\n        \r\n    end\r\n\r\n\r\n=begin\r\n    :type movie: Integer\r\n    :rtype: Integer[]\r\n=end\r\n    def search(movie)\r\n        \r\n    end\r\n\r\n\r\n=begin\r\n    :type shop: Integer\r\n    :type movie: Integer\r\n    :rtype: Void\r\n=end\r\n    def rent(shop, movie)\r\n        \r\n    end\r\n\r\n\r\n=begin\r\n    :type shop: Integer\r\n    :type movie: Integer\r\n    :rtype: Void\r\n=end\r\n    def drop(shop, movie)\r\n        \r\n    end\r\n\r\n\r\n=begin\r\n    :rtype: Integer[][]\r\n=end\r\n    def report()\r\n        \r\n    end\r\n\r\n\r\nend\r\n\r\n# Your MovieRentingSystem object will be instantiated and called as such:\r\n# obj = MovieRentingSystem.new(n, entries)\r\n# param_1 = obj.search(movie)\r\n# obj.rent(shop, movie)\r\n# obj.drop(shop, movie)\r\n# param_4 = obj.report()",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Swift",
                    "langSlug": "swift",
                    "code": "class MovieRentingSystem {\r\n\r\n    init(_ n: Int, _ entries: [[Int]]) {\r\n        \r\n    }\r\n    \r\n    func search(_ movie: Int) -> [Int] {\r\n        \r\n    }\r\n    \r\n    func rent(_ shop: Int, _ movie: Int) {\r\n        \r\n    }\r\n    \r\n    func drop(_ shop: Int, _ movie: Int) {\r\n        \r\n    }\r\n    \r\n    func report() -> [[Int]] {\r\n        \r\n    }\r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * let obj = MovieRentingSystem(n, entries)\r\n * let ret_1: [Int] = obj.search(movie)\r\n * obj.rent(shop, movie)\r\n * obj.drop(shop, movie)\r\n * let ret_4: [[Int]] = obj.report()\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Go",
                    "langSlug": "golang",
                    "code": "type MovieRentingSystem struct {\r\n    \r\n}\r\n\r\n\r\nfunc Constructor(n int, entries [][]int) MovieRentingSystem {\r\n    \r\n}\r\n\r\n\r\nfunc (this *MovieRentingSystem) Search(movie int) []int {\r\n    \r\n}\r\n\r\n\r\nfunc (this *MovieRentingSystem) Rent(shop int, movie int)  {\r\n    \r\n}\r\n\r\n\r\nfunc (this *MovieRentingSystem) Drop(shop int, movie int)  {\r\n    \r\n}\r\n\r\n\r\nfunc (this *MovieRentingSystem) Report() [][]int {\r\n    \r\n}\r\n\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * obj := Constructor(n, entries);\r\n * param_1 := obj.Search(movie);\r\n * obj.Rent(shop,movie);\r\n * obj.Drop(shop,movie);\r\n * param_4 := obj.Report();\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Scala",
                    "langSlug": "scala",
                    "code": "class MovieRentingSystem(_n: Int, _entries: Array[Array[Int]]) {\r\n\r\n    def search(movie: Int): List[Int] = {\r\n        \r\n    }\r\n\r\n    def rent(shop: Int, movie: Int) {\r\n        \r\n    }\r\n\r\n    def drop(shop: Int, movie: Int) {\r\n        \r\n    }\r\n\r\n    def report(): List[List[Int]] = {\r\n        \r\n    }\r\n\r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * var obj = new MovieRentingSystem(n, entries)\r\n * var param_1 = obj.search(movie)\r\n * obj.rent(shop,movie)\r\n * obj.drop(shop,movie)\r\n * var param_4 = obj.report()\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "code": "class MovieRentingSystem(n: Int, entries: Array<IntArray>) {\r\n\r\n    fun search(movie: Int): List<Int> {\r\n        \r\n    }\r\n\r\n    fun rent(shop: Int, movie: Int) {\r\n        \r\n    }\r\n\r\n    fun drop(shop: Int, movie: Int) {\r\n        \r\n    }\r\n\r\n    fun report(): List<List<Int>> {\r\n        \r\n    }\r\n\r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * var obj = MovieRentingSystem(n, entries)\r\n * var param_1 = obj.search(movie)\r\n * obj.rent(shop,movie)\r\n * obj.drop(shop,movie)\r\n * var param_4 = obj.report()\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Rust",
                    "langSlug": "rust",
                    "code": "struct MovieRentingSystem {\r\n\r\n}\r\n\r\n\r\n/** \r\n * `&self` means the method takes an immutable reference.\r\n * If you need a mutable reference, change it to `&mut self` instead.\r\n */\r\nimpl MovieRentingSystem {\r\n\r\n    fn new(n: i32, entries: Vec<Vec<i32>>) -> Self {\r\n        \r\n    }\r\n    \r\n    fn search(&self, movie: i32) -> Vec<i32> {\r\n        \r\n    }\r\n    \r\n    fn rent(&self, shop: i32, movie: i32) {\r\n        \r\n    }\r\n    \r\n    fn drop(&self, shop: i32, movie: i32) {\r\n        \r\n    }\r\n    \r\n    fn report(&self) -> Vec<Vec<i32>> {\r\n        \r\n    }\r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * let obj = MovieRentingSystem::new(n, entries);\r\n * let ret_1: Vec<i32> = obj.search(movie);\r\n * obj.rent(shop, movie);\r\n * obj.drop(shop, movie);\r\n * let ret_4: Vec<Vec<i32>> = obj.report();\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "PHP",
                    "langSlug": "php",
                    "code": "class MovieRentingSystem {\r\n    /**\r\n     * @param Integer $n\r\n     * @param Integer[][] $entries\r\n     */\r\n    function __construct($n, $entries) {\r\n        \r\n    }\r\n  \r\n    /**\r\n     * @param Integer $movie\r\n     * @return Integer[]\r\n     */\r\n    function search($movie) {\r\n        \r\n    }\r\n  \r\n    /**\r\n     * @param Integer $shop\r\n     * @param Integer $movie\r\n     * @return NULL\r\n     */\r\n    function rent($shop, $movie) {\r\n        \r\n    }\r\n  \r\n    /**\r\n     * @param Integer $shop\r\n     * @param Integer $movie\r\n     * @return NULL\r\n     */\r\n    function drop($shop, $movie) {\r\n        \r\n    }\r\n  \r\n    /**\r\n     * @return Integer[][]\r\n     */\r\n    function report() {\r\n        \r\n    }\r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * $obj = MovieRentingSystem($n, $entries);\r\n * $ret_1 = $obj->search($movie);\r\n * $obj->rent($shop, $movie);\r\n * $obj->drop($shop, $movie);\r\n * $ret_4 = $obj->report();\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "TypeScript",
                    "langSlug": "typescript",
                    "code": "class MovieRentingSystem {\r\n    constructor(n: number, entries: number[][]) {\r\n\r\n    }\r\n\r\n    search(movie: number): number[] {\r\n\r\n    }\r\n\r\n    rent(shop: number, movie: number): void {\r\n\r\n    }\r\n\r\n    drop(shop: number, movie: number): void {\r\n\r\n    }\r\n\r\n    report(): number[][] {\r\n\r\n    }\r\n}\r\n\r\n/**\r\n * Your MovieRentingSystem object will be instantiated and called as such:\r\n * var obj = new MovieRentingSystem(n, entries)\r\n * var param_1 = obj.search(movie)\r\n * obj.rent(shop,movie)\r\n * obj.drop(shop,movie)\r\n * var param_4 = obj.report()\r\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Racket",
                    "langSlug": "racket",
                    "code": "(define movie-renting-system%\r\n  (class object%\r\n    (super-new)\r\n\r\n    ; n : exact-integer?\r\n\r\n    ; entries : (listof (listof exact-integer?))\r\n    (init-field\r\n      n\r\n      entries)\r\n    \r\n    ; search : exact-integer? -> (listof exact-integer?)\r\n    (define/public (search movie)\r\n\r\n      )\r\n    ; rent : exact-integer? exact-integer? -> void?\r\n    (define/public (rent shop movie)\r\n\r\n      )\r\n    ; drop : exact-integer? exact-integer? -> void?\r\n    (define/public (drop shop movie)\r\n\r\n      )\r\n    ; report : -> (listof (listof exact-integer?))\r\n    (define/public (report)\r\n\r\n      )))\r\n\r\n;; Your movie-renting-system% object will be instantiated and called as such:\r\n;; (define obj (new movie-renting-system% [n n] [entries entries]))\r\n;; (define param_1 (send obj search movie))\r\n;; (send obj rent shop movie)\r\n;; (send obj drop shop movie)\r\n;; (define param_4 (send obj report))",
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            "hints": [
                "You need to maintain a sorted list for each movie and a sorted list for rented movies",
                "When renting a movie remove it from its movies sorted list and added it to the rented list and vice versa in the case of dropping a movie"
            ],
            "solution": null,
            "status": null,
            "sampleTestCase": "[\"MovieRentingSystem\",\"search\",\"rent\",\"rent\",\"report\",\"drop\",\"search\"]\n[[3,[[0,1,5],[0,2,6],[0,3,7],[1,1,4],[1,2,7],[2,1,5]]],[1],[0,1],[1,2],[],[1,2],[2]]",
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