{ "data": { "question": { "questionId": "732", "questionFrontendId": "732", "boundTopicId": null, "title": "My Calendar III", "titleSlug": "my-calendar-iii", "content": "

A k-booking happens when k events have some non-empty intersection (i.e., there is some time that is common to all k events.)

\n\n

You are given some events [start, end), after each given event, return an integer k representing the maximum k-booking between all the previous events.

\n\n

Implement the MyCalendarThree class:

\n\n\n\n

 

\n

Example 1:

\n\n
\nInput\n["MyCalendarThree", "book", "book", "book", "book", "book", "book"]\n[[], [10, 20], [50, 60], [10, 40], [5, 15], [5, 10], [25, 55]]\nOutput\n[null, 1, 1, 2, 3, 3, 3]\n\nExplanation\nMyCalendarThree myCalendarThree = new MyCalendarThree();\nmyCalendarThree.book(10, 20); // return 1, The first event can be booked and is disjoint, so the maximum k-booking is a 1-booking.\nmyCalendarThree.book(50, 60); // return 1, The second event can be booked and is disjoint, so the maximum k-booking is a 1-booking.\nmyCalendarThree.book(10, 40); // return 2, The third event [10, 40) intersects the first event, and the maximum k-booking is a 2-booking.\nmyCalendarThree.book(5, 15); // return 3, The remaining events cause the maximum K-booking to be only a 3-booking.\nmyCalendarThree.book(5, 10); // return 3\nmyCalendarThree.book(25, 55); // return 3\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": null, "translatedContent": null, "isPaidOnly": false, "difficulty": "Hard", "likes": 708, "dislikes": 146, "isLiked": null, "similarQuestions": "[{\"title\": \"My Calendar I\", \"titleSlug\": \"my-calendar-i\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"My Calendar II\", \"titleSlug\": \"my-calendar-ii\", \"difficulty\": \"Medium\", \"translatedTitle\": null}]", "exampleTestcases": "[\"MyCalendarThree\",\"book\",\"book\",\"book\",\"book\",\"book\",\"book\"]\n[[],[10,20],[50,60],[10,40],[5,15],[5,10],[25,55]]", "categoryTitle": "Algorithms", "contributors": [], "topicTags": [ { "name": "Design", "slug": "design", "translatedName": null, "__typename": "TopicTagNode" }, { "name": "Segment Tree", "slug": "segment-tree", "translatedName": null, "__typename": "TopicTagNode" }, { "name": "Ordered Set", "slug": "ordered-set", "translatedName": null, "__typename": "TopicTagNode" } ], "companyTagStats": null, "codeSnippets": [ { "lang": "C++", "langSlug": "cpp", "code": "class MyCalendarThree {\npublic:\n MyCalendarThree() {\n \n }\n \n int book(int start, int end) {\n \n }\n};\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * MyCalendarThree* obj = new MyCalendarThree();\n * int param_1 = obj->book(start,end);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Java", "langSlug": "java", "code": "class MyCalendarThree {\n\n public MyCalendarThree() {\n \n }\n \n public int book(int start, int end) {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * MyCalendarThree obj = new MyCalendarThree();\n * int param_1 = obj.book(start,end);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Python", "langSlug": "python", "code": "class MyCalendarThree(object):\n\n def __init__(self):\n \n\n def book(self, start, end):\n \"\"\"\n :type start: int\n :type end: int\n :rtype: int\n \"\"\"\n \n\n\n# Your MyCalendarThree object will be instantiated and called as such:\n# obj = MyCalendarThree()\n# param_1 = obj.book(start,end)", "__typename": "CodeSnippetNode" }, { "lang": "Python3", "langSlug": "python3", "code": "class MyCalendarThree:\n\n def __init__(self):\n \n\n def book(self, start: int, end: int) -> int:\n \n\n\n# Your MyCalendarThree object will be instantiated and called as such:\n# obj = MyCalendarThree()\n# param_1 = obj.book(start,end)", "__typename": "CodeSnippetNode" }, { "lang": "C", "langSlug": "c", "code": "\n\n\ntypedef struct {\n \n} MyCalendarThree;\n\n\nMyCalendarThree* myCalendarThreeCreate() {\n \n}\n\nint myCalendarThreeBook(MyCalendarThree* obj, int start, int end) {\n \n}\n\nvoid myCalendarThreeFree(MyCalendarThree* obj) {\n \n}\n\n/**\n * Your MyCalendarThree struct will be instantiated and called as such:\n * MyCalendarThree* obj = myCalendarThreeCreate();\n * int param_1 = myCalendarThreeBook(obj, start, end);\n \n * myCalendarThreeFree(obj);\n*/", "__typename": "CodeSnippetNode" }, { "lang": "C#", "langSlug": "csharp", "code": "public class MyCalendarThree {\n\n public MyCalendarThree() {\n \n }\n \n public int Book(int start, int end) {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * MyCalendarThree obj = new MyCalendarThree();\n * int param_1 = obj.Book(start,end);\n */", "__typename": "CodeSnippetNode" }, { "lang": "JavaScript", "langSlug": "javascript", "code": "\nvar MyCalendarThree = function() {\n \n};\n\n/** \n * @param {number} start \n * @param {number} end\n * @return {number}\n */\nMyCalendarThree.prototype.book = function(start, end) {\n \n};\n\n/** \n * Your MyCalendarThree object will be instantiated and called as such:\n * var obj = new MyCalendarThree()\n * var param_1 = obj.book(start,end)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Ruby", "langSlug": "ruby", "code": "class MyCalendarThree\n def initialize()\n \n end\n\n\n=begin\n :type start: Integer\n :type end: Integer\n :rtype: Integer\n=end\n def book(start, end)\n \n end\n\n\nend\n\n# Your MyCalendarThree object will be instantiated and called as such:\n# obj = MyCalendarThree.new()\n# param_1 = obj.book(start, end)", "__typename": "CodeSnippetNode" }, { "lang": "Swift", "langSlug": "swift", "code": "\nclass MyCalendarThree {\n\n init() {\n \n }\n \n func book(_ start: Int, _ end: Int) -> Int {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * let obj = MyCalendarThree()\n * let ret_1: Int = obj.book(start, end)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Go", "langSlug": "golang", "code": "type MyCalendarThree struct {\n \n}\n\n\nfunc Constructor() MyCalendarThree {\n \n}\n\n\nfunc (this *MyCalendarThree) Book(start int, end int) int {\n \n}\n\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * obj := Constructor();\n * param_1 := obj.Book(start,end);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Scala", "langSlug": "scala", "code": "class MyCalendarThree() {\n\n def book(start: Int, end: Int): Int = {\n \n }\n\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * var obj = new MyCalendarThree()\n * var param_1 = obj.book(start,end)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Kotlin", "langSlug": "kotlin", "code": "class MyCalendarThree() {\n\n fun book(start: Int, end: Int): Int {\n \n }\n\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * var obj = MyCalendarThree()\n * var param_1 = obj.book(start,end)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Rust", "langSlug": "rust", "code": "struct MyCalendarThree {\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 MyCalendarThree {\n\n fn new() -> Self {\n \n }\n \n fn book(&self, start: i32, end: i32) -> i32 {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * let obj = MyCalendarThree::new();\n * let ret_1: i32 = obj.book(start, end);\n */", "__typename": "CodeSnippetNode" }, { "lang": "PHP", "langSlug": "php", "code": "class MyCalendarThree {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param Integer $start\n * @param Integer $end\n * @return Integer\n */\n function book($start, $end) {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * $obj = MyCalendarThree();\n * $ret_1 = $obj->book($start, $end);\n */", "__typename": "CodeSnippetNode" }, { "lang": "TypeScript", "langSlug": "typescript", "code": "class MyCalendarThree {\n constructor() {\n\n }\n\n book(start: number, end: number): number {\n\n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * var obj = new MyCalendarThree()\n * var param_1 = obj.book(start,end)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Racket", "langSlug": "racket", "code": "(define my-calendar-three%\n (class object%\n (super-new)\n (init-field)\n \n ; book : exact-integer? exact-integer? -> exact-integer?\n (define/public (book start end)\n\n )))\n\n;; Your my-calendar-three% object will be instantiated and called as such:\n;; (define obj (new my-calendar-three%))\n;; (define param_1 (send obj book start end))", "__typename": "CodeSnippetNode" }, { "lang": "Erlang", "langSlug": "erlang", "code": "-spec my_calendar_three_init_() -> any().\nmy_calendar_three_init_() ->\n .\n\n-spec my_calendar_three_book(Start :: integer(), End :: integer()) -> integer().\nmy_calendar_three_book(Start, End) ->\n .\n\n\n%% Your functions will be called as such:\n%% my_calendar_three_init_(),\n%% Param_1 = my_calendar_three_book(Start, End),\n\n%% my_calendar_three_init_ will be called before every test case, in which you can do some necessary initializations.", "__typename": "CodeSnippetNode" }, { "lang": "Elixir", "langSlug": "elixir", "code": "defmodule MyCalendarThree do\n @spec init_() :: any\n def init_() do\n\n end\n\n @spec book(start :: integer, end :: integer) :: integer\n def book(start, end) do\n\n end\nend\n\n# Your functions will be called as such:\n# MyCalendarThree.init_()\n# param_1 = MyCalendarThree.book(start, end)\n\n# MyCalendarThree.init_ will be called before every test case, in which you can do some necessary initializations.", "__typename": "CodeSnippetNode" } ], "stats": "{\"totalAccepted\": \"39.9K\", \"totalSubmission\": \"60.1K\", \"totalAcceptedRaw\": 39930, \"totalSubmissionRaw\": 60078, \"acRate\": \"66.5%\"}", "hints": [ "Treat each interval [start, end) as two events \"start\" and \"end\", and process them in sorted order." ], "solution": { "id": "304", "canSeeDetail": true, "paidOnly": false, "hasVideoSolution": false, "paidOnlyVideo": true, "__typename": "ArticleNode" }, "status": null, "sampleTestCase": "[\"MyCalendarThree\",\"book\",\"book\",\"book\",\"book\",\"book\",\"book\"]\n[[],[10,20],[50,60],[10,40],[5,15],[5,10],[25,55]]", "metaData": "{\r\n \"classname\": \"MyCalendarThree\",\r\n \"constructor\": {\r\n \"params\": []\r\n },\r\n \"methods\": [\r\n {\r\n \"name\" : \"book\",\r\n \"params\": [\r\n {\r\n \"type\": \"integer\",\r\n \"name\": \"start\"\r\n },\r\n {\r\n \"type\": \"integer\",\r\n \"name\": \"end\"\r\n }\r\n ],\r\n \"return\": {\r\n \"type\": \"integer\"\r\n }\r\n }\r\n ],\r\n \"systemdesign\": true,\r\n \"params\": [\r\n {\r\n \"name\": \"starts\",\r\n \"type\": \"integer[]\"\r\n },\r\n {\r\n \"name\": \"ends\",\r\n \"type\": \"integer[]\"\r\n }\r\n ],\r\n \"return\": {\r\n \"type\": \"list\",\r\n \"dealloc\": true\r\n }\r\n}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "enableTestMode": false, "enableDebugger": true, "envInfo": "{\"cpp\": [\"C++\", \"

Compiled with clang 11 using the latest C++ 17 standard.

\\r\\n\\r\\n

Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.

\\r\\n\\r\\n

Most standard library headers are already included automatically for your convenience.

\"], \"java\": [\"Java\", \"

OpenJDK 17 . Java 8 features such as lambda expressions and stream API can be used.

\\r\\n\\r\\n

Most standard library headers are already included automatically for your convenience.

\\r\\n

Includes Pair class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.

\"], \"python\": [\"Python\", \"

Python 2.7.12.

\\r\\n\\r\\n

Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.

\\r\\n\\r\\n

For Map/TreeMap data structure, you may use sortedcontainers library.

\\r\\n\\r\\n

Note that Python 2.7 will not be maintained past 2020. For the latest Python, please choose Python3 instead.

\"], \"c\": [\"C\", \"

Compiled with gcc 8.2 using the gnu99 standard.

\\r\\n\\r\\n

Your code is compiled with level one optimization (-O1). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.

\\r\\n\\r\\n

Most standard library headers are already included automatically for your convenience.

\\r\\n\\r\\n

For hash table operations, you may use uthash. \\\"uthash.h\\\" is included by default. Below are some examples:

\\r\\n\\r\\n

1. Adding an item to a hash.\\r\\n

\\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
\\r\\n

\\r\\n\\r\\n

2. Looking up an item in a hash:\\r\\n

\\r\\nstruct hash_entry *find_user(int user_id) {\\r\\n    struct hash_entry *s;\\r\\n    HASH_FIND_INT(users, &user_id, s);\\r\\n    return s;\\r\\n}\\r\\n
\\r\\n

\\r\\n\\r\\n

3. Deleting an item in a hash:\\r\\n

\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n    HASH_DEL(users, user);  \\r\\n}\\r\\n
\\r\\n

\"], \"csharp\": [\"C#\", \"

C# 10 with .NET 6 runtime

\\r\\n\\r\\n

Your code is compiled with debug flag enabled (/debug).

\"], \"javascript\": [\"JavaScript\", \"

Node.js 16.13.2.

\\r\\n\\r\\n

Your code is run with --harmony flag, enabling new ES6 features.

\\r\\n\\r\\n

lodash.js library is included by default.

\\r\\n\\r\\n

For Priority Queue / Queue data structures, you may use datastructures-js/priority-queue and datastructures-js/queue.

\"], \"ruby\": [\"Ruby\", \"

Ruby 3.1

\\r\\n\\r\\n

Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms

\"], \"swift\": [\"Swift\", \"

Swift 5.5.2.

\"], \"golang\": [\"Go\", \"

Go 1.17.6.

\\r\\n\\r\\n

Support https://godoc.org/github.com/emirpasic/gods library.

\"], \"python3\": [\"Python3\", \"

Python 3.10.

\\r\\n\\r\\n

Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.

\\r\\n\\r\\n

For Map/TreeMap data structure, you may use sortedcontainers library.

\"], \"scala\": [\"Scala\", \"

Scala 2.13.7.

\"], \"kotlin\": [\"Kotlin\", \"

Kotlin 1.3.10.

\"], \"rust\": [\"Rust\", \"

Rust 1.58.1

\\r\\n\\r\\n

Supports rand v0.6\\u00a0from crates.io

\"], \"php\": [\"PHP\", \"

PHP 8.1.

\\r\\n

With bcmath module

\"], \"typescript\": [\"Typescript\", \"

TypeScript 4.5.4, Node.js 16.13.2.

\\r\\n\\r\\n

Your code is run with --harmony flag, enabling new ES2020 features.

\\r\\n\\r\\n

lodash.js library is included by default.

\"], \"racket\": [\"Racket\", \"

Run with Racket 8.3.

\"], \"erlang\": [\"Erlang\", \"Erlang/OTP 24.2\"], \"elixir\": [\"Elixir\", \"Elixir 1.13.0 with Erlang/OTP 24.2\"]}", "libraryUrl": null, "adminUrl": null, "challengeQuestion": null, "__typename": "QuestionNode" } } }