Fizz Buzz Multithreaded(LeetCode 1195):

Problem

You have the four functions:

  • printFizz that prints the word "fizz" to the console,
  • printBuzz that prints the word "buzz" to the console,
  • printFizzBuzz that prints the word "fizzbuzz" to the console, and
  • printNumber that prints a given integer to the console.

You are given an instance of the class FizzBuzz that has four functions: fizz, buzz, fizzbuzz and number. The same instance of FizzBuzz will be passed to four different threads:

  • Thread A: calls fizz() that should output the word "fizz".
  • Thread B: calls buzz() that should output the word "buzz".
  • Thread C: calls fizzbuzz() that should output the word "fizzbuzz".
  • Thread D: calls number() that should only output the integers.

Modify the given class to output the series [1, 2, "fizz", 4, "buzz", ...] where the ith token (1-indexed) of the series is:

  • "fizzbuzz" if i is divisible by 3 and 5,
  • "fizz" if i is divisible by 3 and not 5,
  • "buzz" if i is divisible by 5 and not 3, or
  • i if i is not divisible by 3 or 5.

Implement the FizzBuzz class:

  • FizzBuzz(int n) Initializes the object with the number n that represents the length of the sequence that should be printed.
  • void fizz(printFizz) Calls printFizz to output "fizz".
  • void buzz(printBuzz) Calls printBuzz to output "buzz".
  • void fizzbuzz(printFizzBuzz) Calls printFizzBuzz to output "fizzbuzz".
  • void number(printNumber) Calls printnumber to output the numbers.

 

Example 1:

Input: n = 15
Output: [1,2,"fizz",4,"buzz","fizz",7,8,"fizz","buzz",11,"fizz",13,14,"fizzbuzz"]

Example 2:

Input: n = 5
Output: [1,2,"fizz",4,"buzz"]

 

Constraints:

  • 1 <= n <= 50