butcher default directory structure to make instructor happy

1 files changed, 17 insertions, 0 deletions

diff --git a/src/HailstoneSequence.java b/src/HailstoneSequence.java
new file mode 100644
index 0000000..b0e3c48
--- /dev/null
+++ b/src/HailstoneSequence.java
@@ -0,0 +1,17 @@
+package ca.mokhan.assignment1;
+
+import java.util.ArrayList;
+
+public class HailstoneSequence {
+  public static ArrayList<Integer> getHailstoneSequence(int n) {
+    return getHailstoneSequence(n, new ArrayList<Integer>());
+  }
+
+  public static ArrayList<Integer> getHailstoneSequence(int n, ArrayList<Integer> items) {
+    items.add(n);
+
+    if (n == 1) return items;
+    else if (n % 2 == 0) return getHailstoneSequence(n / 2, items);
+    else return getHailstoneSequence((n * 3) + 1, items);
+  }
+}