{ "data": { "question": { "questionId": "1216", "questionFrontendId": "1116", "boundTopicId": null, "title": "Print Zero Even Odd", "titleSlug": "print-zero-even-odd", "content": "
You have a function printNumber
that can be called with an integer parameter and prints it to the console.
printNumber(7)
prints 7
to the console.You are given an instance of the class ZeroEvenOdd
that has three functions: zero
, even
, and odd
. The same instance of ZeroEvenOdd
will be passed to three different threads:
zero()
that should only output 0
's.even()
that should only output even numbers.odd()
that should only output odd numbers.Modify the given class to output the series "010203040506..."
where the length of the series must be 2n
.
Implement the ZeroEvenOdd
class:
ZeroEvenOdd(int n)
Initializes the object with the number n
that represents the numbers that should be printed.void zero(printNumber)
Calls printNumber
to output one zero.void even(printNumber)
Calls printNumber
to output one even number.void odd(printNumber)
Calls printNumber
to output one odd number.\n
Example 1:
\n\n\nInput: n = 2\nOutput: "0102"\nExplanation: There are three threads being fired asynchronously.\nOne of them calls zero(), the other calls even(), and the last one calls odd().\n"0102" is the correct output.\n\n\n
Example 2:
\n\n\nInput: n = 5\nOutput: "0102030405"\n\n\n
\n
Constraints:
\n\n1 <= n <= 1000
Compiled with clang 11
using the latest C++ 20 standard.
Your code is compiled with level two optimization (-O2
). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
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.
Most standard library headers are already included automatically for your convenience.
\\r\\nIncludes Pair
class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.
Python 2.7.12
.
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\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
\\r\\n\\r\\nNote 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 gnu11 standard.
Your code is compiled with level one optimization (-O1
). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
\\r\\n\\r\\nFor hash table operations, you may use uthash. \\\"uthash.h\\\" is included by default. Below are some examples:
\\r\\n\\r\\n1. 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#\", \"\"], \"python3\": [\"Python3\", \"
Python 3.10
.
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\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
\"]}", "libraryUrl": null, "adminUrl": null, "challengeQuestion": null, "__typename": "QuestionNode" } } }