From e36c023e2b08af89b41df7b0549fe122573f2556 Mon Sep 17 00:00:00 2001
From: Viraj Gite <31462837+virajgite@users.noreply.github.com>
Date: Mon, 17 Dec 2018 12:21:47 -0500
Subject: [PATCH] queue rear and pop edited

previously.....
1. updating queue rear before incrementing queue size in the queue.enqueue( ) sets queue rear to actual rear-1
2. queue.pop( ) pops elements from rear, instead from the front.
---
 Queue/Queue.ipynb | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Queue/Queue.ipynb b/Queue/Queue.ipynb
index 806a9b3..1126cf7 100644
--- a/Queue/Queue.ipynb
+++ b/Queue/Queue.ipynb
@@ -77,6 +77,7 @@
     "            return -1          # queue overflow\n",
     "        else:\n",
     "            self.queue.append(data)\n",
+    "            self.size += 1\n"
     "        \n",
     "        # assign the rear as size of the queue and front as 0\n",
     "        if self.front is None:\n",
@@ -84,14 +85,14 @@
     "        else:\n",
     "            self.rear = self.size\n",
     "            \n",
-    "        self.size += 1\n",
+    "        
     "    \n",
     "    # to pop an element from the front end of the queue\n",
     "    def dequeue(self):\n",
     "        if self.isEmpty():\n",
     "            return -1          # queue underflow\n",
     "        else:\n",
-    "            self.queue.pop()\n",
+    "            self.queue.pop(self.front)\n",
     "            self.size -= 1\n",
     "            if self.size == 0:\n",
     "                self.front = self.rear = 0\n",