From de286db8594d547591ff765f4d5934d99248779b Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Tue, 21 Jul 2020 20:41:37 +0100
Subject: merge sort works

---
 ds/arraylist.go | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'ds/arraylist.go')

diff --git a/ds/arraylist.go b/ds/arraylist.go
index c2ada86..7bc002a 100644
--- a/ds/arraylist.go
+++ b/ds/arraylist.go
@@ -35,3 +35,9 @@ func (a ArrayList) Sorted() bool {
 	}
 	return true
 }
+
+func (a ArrayList) SwapPos(i, j int) {
+	tmp := a[i]
+	a[i] = a[j]
+	a[j] = tmp
+}
-- 
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