1. Dr. Joe Anderson September 6, 2017
COSC 117 Lab 2
Dr. Joe Anderson
September 6, 2017

2. Modulus operator Modulus operator: “%”
Performs division of two numbers and returns only the remainder
Ex:
11 % 5 == 1
10 % 5 == 0
23 % 3 == 2
Common usage: to test if a number is even or odd!
If n is even, then n % 2 == 0
If n is odd, then n % 2 == 1

3. Lab: 3N + 1 Problem Given: a positive integer ”n”
If n is even, divide it by 2
If n is odd, multiply it by 3 and add 1
Stop when n is 1, otherwise, repeat
Ex: Start with 3
3 -> 10 -> 5 -> 16 -> 8 -> 4 -> 2 -> 1
Your tasks:
Ask user for a positive int
Perform 3N + 1 operation, until it reaches 1, and print each step to the terminal