From c176ba378e8807033e58ccc47839f7614df36866 Mon Sep 17 00:00:00 2001
From: Grigoris Thanasoulas <gregthanasoulas@gmail.com>
Date: Fri, 20 Jun 2025 17:05:14 +0200
Subject: [PATCH] arrayqueue: Fix bug in Back() method (#313)

---
 datastructure/queue/arrayqueue.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/datastructure/queue/arrayqueue.go b/datastructure/queue/arrayqueue.go
index d15e933..4532894 100644
--- a/datastructure/queue/arrayqueue.go
+++ b/datastructure/queue/arrayqueue.go
@@ -60,7 +60,7 @@ func (q *ArrayQueue[T]) Front() T {
 
 // Back return back value of queue
 func (q *ArrayQueue[T]) Back() T {
-	return q.data[q.size-1]
+	return q.data[q.tail-1]
 }
 
 // EnQueue put element into queue