FizzBuzz Explained

Problem Statement

Write a program that prints the numbers from 1 to n. For multiples of 3, print "Fizz" instead of the number, and for multiples of 5, print "Buzz". For numbers that are multiples of both 3 and 5, print "FizzBuzz". This classic coding challenge tests your ability to combine loops with conditional logic to produce a specific output pattern based on divisibility rules.

Example

Input: n = 15

Output:

1
2
Fizz
4
Buzz
Fizz
7
8
Fizz
Buzz
11
Fizz
13
14
FizzBuzz
            

Code

public class Solution {
    public void fizzBuzz(int n) {
        for (int i = 1; i <= n; i++) {
            if (i % 3 == 0 && i % 5 == 0) {
                System.out.println("FizzBuzz");
            } else if (i % 3 == 0) {
                System.out.println("Fizz");
            } else if (i % 5 == 0) {
                System.out.println("Buzz");
            } else {
                System.out.println(i);
            }
        }
    }

    public static void main(String[] args) {
        Solution sol = new Solution();
        sol.fizzBuzz(15);
    }
}
            

def fizz_buzz(n):
    for i in range(1, n + 1):
        if i % 3 == 0 and i % 5 == 0:
            print("FizzBuzz")
        elif i % 3 == 0:
            print("Fizz")
        elif i % 5 == 0:
            print("Buzz")
        else:
            print(i)

# Example usage
fizz_buzz(15)
            

function fizzBuzz(n) {
    for (let i = 1; i <= n; i++) {
        if (i % 3 === 0 && i % 5 === 0) {
            console.log("FizzBuzz");
        } else if (i % 3 === 0) {
            console.log("Fizz");
        } else if (i % 5 === 0) {
            console.log("Buzz");
        } else {
            console.log(i);
        }
    }
}

// Example usage
fizzBuzz(15);
            

Explanation

• Iterate through numbers from 1 to n using a loop.
• For each number, check if it is divisible by both 3 and 5 (i.e., divisible by 15). If true, print "FizzBuzz".
• If not, check if it is divisible by 3. If true, print "Fizz".
• If not divisible by 3, check if it is divisible by 5. If true, print "Buzz".
• If none of the above conditions are met, print the number itself.
• The order of checks is important: check for both 3 and 5 first to avoid printing "Fizz" or "Buzz" for numbers like 15.

Note