FizzBuzz - codepath/compsci_guides GitHub Wiki

Unit 1 Session 2 (Click for link to problem statements)

U-nderstand

Understand what the interviewer is asking for by using test cases and questions about the problem.

• Will n always be a positive integer?
  • Yes.

P-lan

Plan the solution with appropriate visualizations and pseudocode.

General Idea: Loop through each number less than or equal to n, printing the appropriate result for each number.

1) Loop from 1 to `n` (inclusive)
  a) If the number is evenly divisible by both 3 and 5, print "Fizzbuzz"
  b) If the number is evenly divisible by 3, print "Fizz"
  c) If the number is evenly divisible by 5, print "Buzz"
  d) Otherwise, print the number

⚠️ Common Mistakes

• A number is "evenly divisible" when the remainder of the division is zero. How can we check for that in python?

I-mplement

def fizzbuzz(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)

Alternative solution:

def fizzbuzz(n):
    for i in range(1, n + 1):
        if i % 15 == 0:
            print("FizzBuzz")
        elif i % 3 == 0:
            print("Fizz")
        elif i % 5 == 0:
            print("Buzz")
        else:
            print(i)