CODEWITHSUNDEEP
java
jackmasterlooter
jackmasterlooter

Reputation: 13

Collatz Sequence: Which number is the biggest?

So I have written code for the Collatz Sequence, but I want to be able to identify and print out the largest number that appears in the sequence. Here is my code:

import java.util.Scanner;

public class CollatzSequence {
    public static void main(String[]args) {
        Scanner keyboard = new Scanner(System.in);
        int n,ts = 0;

        System.out.print("This is the Lothar Collatz Sequnce. Please enter the starting number.\n>");
        n = keyboard.nextInt();

        do {
            if (n % 2 == 0) {
                n = n / 2;
                System.out.println(n);
            }
            else {
                n = n*3 + 1;
                System.out.println(n);
            }
        ts++;
        }
        while (n != 1);       
        System.out.println("Terminated after "+ts+" steps.");

        }
    }

Upvotes: 1

Views: 317

Answers (1)

D M
D M

Reputation: 1410

Make a variable called max. Set it initially equal to n. In each step, check if n > max and if it is, set max to n.

Upvotes: 2

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