Question

This MUST be done in C++

Write a program with a loop to ask the user for an integer greater than or equal to 2 and then pass the integer to a function which will produce and display on the console the ulam sequence¹. Do not accept a number less than 2.

¹The ulam sequence begins with an integer. If it is even, divide by 2. If it is odd, multiply by 3 and add 1. Then apply the appropriate rule to the resulting integer. Continue in this way until the number produced is 1. This sequence will always, eventually produce a value of 1.

Answer 1

#include <iostream>
using namespace std;

int main() {
    int num;
    cout << "Enter a number: ";
    cin >> num;
    while (num > 1) {
        cout << num << endl;
        if (num % 2 == 0) {
            num /= 2;
        } else {
            num = 3*num + 1;
        }
    }
    cout << 1 << endl;
    return 0;
}