[Java] 3n+1 문제 : The Collatz problem

[Java] 3n+1 문제 : The Collatz problem

문제 설명

내 코드

import java.io.*;

import java.util.*;



class Main {

	public static void main(String[] args) throws Exception {
		Scanner scanner = new Scanner(System.in);

		while(scanner.hasNextLine()){
			int n= scanner.nextInt();
			int m= scanner.nextInt();
			int max=0;
            
			for(int i=n; i<=m; i++){
				int count =1;
				int number = i;

				while(true){
					if(number ==1) {break;}
					if(number % 2 ==0) {number = number /2;}
					else {number = number*3+1;}
					count++;
				}
				if(count>max) 
					max=count;

			}
            
			System.out.println(n +" "+ m +" "+max);
		}


	}
}

🔑 Key Point 🔑

max 변수 잡아주는 것