编辑代码

public class Main {
    public static int countWays(int n) {
        if (n == 1 || n == 2) {
            return n;
        }
        
        return countWays(n - 1) + countWays(n - 2);
    }
    
    public static void main(String[] args) {
        int n = 5;
        int ways = countWays(n);
        System.out.println("Number of ways to reach " + n + " steps: " + ways);
    }
}