{
    "data": {
        "question": {
            "questionId": "1216",
            "questionFrontendId": "1116",
            "boundTopicId": null,
            "title": "Print Zero Even Odd",
            "titleSlug": "print-zero-even-odd",
            "content": "<p>You have a function <code>printNumber</code> that can be called with an integer parameter and prints it to the console.</p>\n\n<ul>\n\t<li>For example, calling <code>printNumber(7)</code> prints <code>7</code> to the console.</li>\n</ul>\n\n<p>You are given an instance of the class <code>ZeroEvenOdd</code> that has three functions: <code>zero</code>, <code>even</code>, and <code>odd</code>. The same instance of <code>ZeroEvenOdd</code> will be passed to three different threads:</p>\n\n<ul>\n\t<li><strong>Thread A:</strong> calls <code>zero()</code> that should only output <code>0</code>&#39;s.</li>\n\t<li><strong>Thread B:</strong> calls <code>even()</code> that should only output even numbers.</li>\n\t<li><strong>Thread C:</strong> calls <code>odd()</code> that should only output odd numbers.</li>\n</ul>\n\n<p>Modify the given class to output the series <code>&quot;010203040506...&quot;</code> where the length of the series must be <code>2n</code>.</p>\n\n<p>Implement the <code>ZeroEvenOdd</code> class:</p>\n\n<ul>\n\t<li><code>ZeroEvenOdd(int n)</code> Initializes the object with the number <code>n</code> that represents the numbers that should be printed.</li>\n\t<li><code>void zero(printNumber)</code> Calls <code>printNumber</code> to output one zero.</li>\n\t<li><code>void even(printNumber)</code> Calls <code>printNumber</code> to output one even number.</li>\n\t<li><code>void odd(printNumber)</code> Calls <code>printNumber</code> to output one odd number.</li>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 2\n<strong>Output:</strong> &quot;0102&quot;\n<strong>Explanation:</strong> There are three threads being fired asynchronously.\nOne of them calls zero(), the other calls even(), and the last one calls odd().\n&quot;0102&quot; is the correct output.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> n = 5\n<strong>Output:</strong> &quot;0102030405&quot;\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= n &lt;= 1000</code></li>\n</ul>\n",
            "translatedTitle": null,
            "translatedContent": null,
            "isPaidOnly": false,
            "difficulty": "Medium",
            "likes": 322,
            "dislikes": 225,
            "isLiked": null,
            "similarQuestions": "[{\"title\": \"Print FooBar Alternately\", \"titleSlug\": \"print-foobar-alternately\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"Fizz Buzz Multithreaded\", \"titleSlug\": \"fizz-buzz-multithreaded\", \"difficulty\": \"Medium\", \"translatedTitle\": null}]",
            "exampleTestcases": "2\n5",
            "categoryTitle": "Concurrency",
            "contributors": [],
            "topicTags": [
                {
                    "name": "Concurrency",
                    "slug": "concurrency",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": [
                {
                    "lang": "C++",
                    "langSlug": "cpp",
                    "code": "class ZeroEvenOdd {\nprivate:\n    int n;\n\npublic:\n    ZeroEvenOdd(int n) {\n        this->n = n;\n    }\n\n    // printNumber(x) outputs \"x\", where x is an integer.\n    void zero(function<void(int)> printNumber) {\n        \n    }\n\n    void even(function<void(int)> printNumber) {\n        \n    }\n\n    void odd(function<void(int)> printNumber) {\n        \n    }\n};",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Java",
                    "langSlug": "java",
                    "code": "class ZeroEvenOdd {\n    private int n;\n    \n    public ZeroEvenOdd(int n) {\n        this.n = n;\n    }\n\n    // printNumber.accept(x) outputs \"x\", where x is an integer.\n    public void zero(IntConsumer printNumber) throws InterruptedException {\n        \n    }\n\n    public void even(IntConsumer printNumber) throws InterruptedException {\n        \n    }\n\n    public void odd(IntConsumer printNumber) throws InterruptedException {\n        \n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python",
                    "langSlug": "python",
                    "code": "class ZeroEvenOdd(object):\n    def __init__(self, n):\n        self.n = n\n        \n        \n\t# printNumber(x) outputs \"x\", where x is an integer.\n    def zero(self, printNumber):\n        \"\"\"\n        :type printNumber: method\n        :rtype: void\n        \"\"\"\n        \n        \n        \n    def even(self, printNumber):\n        \"\"\"\n        :type printNumber: method\n        :rtype: void\n        \"\"\"\n        \n        \n        \n    def odd(self, printNumber):\n        \"\"\"\n        :type printNumber: method\n        :rtype: void\n        \"\"\"\n        \n        ",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python3",
                    "langSlug": "python3",
                    "code": "class ZeroEvenOdd:\n    def __init__(self, n):\n        self.n = n\n        \n        \n\t# printNumber(x) outputs \"x\", where x is an integer.\n    def zero(self, printNumber: 'Callable[[int], None]') -> None:\n        \n        \n        \n    def even(self, printNumber: 'Callable[[int], None]') -> None:\n        \n        \n        \n    def odd(self, printNumber: 'Callable[[int], None]') -> None:\n        \n        ",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C",
                    "langSlug": "c",
                    "code": "typedef struct {\n    int n;\n} ZeroEvenOdd;\n\nZeroEvenOdd* zeroEvenOddCreate(int n) {\n    ZeroEvenOdd* obj = (ZeroEvenOdd*) malloc(sizeof(ZeroEvenOdd));\n    obj->n = n;\n    return obj;\n}\n\n// You may call global function `void printNumber(int x)`\n// to output \"x\", where x is an integer.\n\nvoid zero(ZeroEvenOdd* obj) {\n    \n}\n\nvoid even(ZeroEvenOdd* obj) {\n    \n}\n\nvoid odd(ZeroEvenOdd* obj) {\n    \n}\n\nvoid zeroEvenOddFree(ZeroEvenOdd* obj) {\n    \n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C#",
                    "langSlug": "csharp",
                    "code": "public class ZeroEvenOdd {\n    private int n;\n    \n    public ZeroEvenOdd(int n) {\n        this.n = n;\n    }\n\n    // printNumber(x) outputs \"x\", where x is an integer.\n    public void Zero(Action<int> printNumber) {\n        \n    }\n\n    public void Even(Action<int> printNumber) {\n        \n    }\n\n    public void Odd(Action<int> printNumber) {\n        \n    }\n}",
                    "__typename": "CodeSnippetNode"
                }
            ],
            "stats": "{\"totalAccepted\": \"30.5K\", \"totalSubmission\": \"51.4K\", \"totalAcceptedRaw\": 30477, \"totalSubmissionRaw\": 51423, \"acRate\": \"59.3%\"}",
            "hints": [],
            "solution": null,
            "status": null,
            "sampleTestCase": "2",
            "metaData": "{\n  \"name\": \"printZeroEvenOdd\",\n  \"params\": [\n    {\n      \"name\": \"n\",\n      \"type\": \"integer\"\n    }\n  ],\n  \"return\": {\n    \"type\": \"integer\"\n  },\n  \"languages\": [\n    \"java\",\n    \"python\",\n    \"python3\",\n    \"cpp\",\n    \"c\",\n    \"csharp\"\n  ],\n  \"manual\": true\n}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [],
            "enableRunCode": true,
            "enableTestMode": false,
            "enableDebugger": false,
            "envInfo": "{\"cpp\": [\"C++\", \"<p>Compiled with <code> clang 11 </code> using the latest C++ 17 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\"], \"java\": [\"Java\", \"<p><code> OpenJDK 17 </code>. Java 8 features such as lambda expressions and stream API can be used. </p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>\"], \"python\": [\"Python\", \"<p><code>Python 2.7.12</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/2/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/2/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/2/library/collections.html\\\" target=\\\"_blank\\\">collections</a>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\\r\\n\\r\\n<p>Note that Python 2.7 <a href=\\\"https://www.python.org/dev/peps/pep-0373/\\\" target=\\\"_blank\\\">will not be maintained past 2020</a>. For the latest Python, please choose Python3 instead.</p>\"], \"c\": [\"C\", \"<p>Compiled with <code>gcc 8.2</code> using the gnu99 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level one optimization (<code>-O1</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n\\r\\n<p>For hash table operations, you may use <a href=\\\"https://troydhanson.github.io/uthash/\\\" target=\\\"_blank\\\">uthash</a>. \\\"uthash.h\\\" is included by default. Below are some examples:</p>\\r\\n\\r\\n<p><b>1. Adding an item to a hash.</b>\\r\\n<pre>\\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<p><b>2. Looking up an item in a hash:</b>\\r\\n<pre>\\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</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>3. Deleting an item in a hash:</b>\\r\\n<pre>\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n    HASH_DEL(users, user);  \\r\\n}\\r\\n</pre>\\r\\n</p>\"], \"csharp\": [\"C#\", \"<p><a href=\\\"https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-9\\\" target=\\\"_blank\\\">C# 10 with .NET 6 runtime</a></p>\\r\\n\\r\\n<p>Your code is compiled with debug flag enabled (<code>/debug</code>).</p>\"], \"python3\": [\"Python3\", \"<p><code>Python 3.10</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/3/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/3/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/3/library/collections.html\\\" target=\\\"_blank\\\">collections</a>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\"]}",
            "libraryUrl": null,
            "adminUrl": null,
            "challengeQuestion": null,
            "__typename": "QuestionNode"
        }
    }
}