task_1

lr9/task_1/e3.java

@@ -0,0 +1,25 @@
+import java.util.Scanner;
+
+class Main {
+    private static int step = 0;
+    public static void m(int x){
+        space();
+        System.out.println("" + x + "-> ");
+        step++;
+        if ((2 * x + 1) < 20){
+            m(2 * x + 1);
+        }
+        step--;
+        space();
+        System.out.println("" + x + " <-");
+    }
+    public static void space(){
+        for (int i = 0; i < step; i++){
+            System.out.println(" ");
+        }
+    }
+
+    public static void main(String[] args) {
+        m(1);
+    }
+}