{"id":146775,"date":"2025-09-05T11:47:08","date_gmt":"2025-09-05T06:17:08","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=146775"},"modified":"2025-09-05T11:47:08","modified_gmt":"2025-09-05T06:17:08","slug":"priority-queue-in-dsa-python","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/priority-queue-in-dsa-python\/","title":{"rendered":"Priority Queue in DSA Python"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"># Implementation of Priority Queue using Module Min Heap\r\nimport queue\r\nimport os\r\nclass MyPQueue:\r\n    def __init__(self):\r\n        self.pq=queue.PriorityQueue()\r\n\r\n    def insert(self):\r\n        n=int(input(\"Enter an element: \"))        \r\n        self.pq.put(n)\r\n\r\n    def delete(self):\r\n        if(self.pq.empty()):\r\n            print(\"Priorty queue is empty\")\r\n        else:\r\n            print(\"Deleted element is: \",self.pq.get())\r\n\r\n    def display(self):\r\n        if(self.pq.empty()):\r\n            print(\"Priorty queue is empty\")\r\n        else:\r\n            print(\"Elements of Priorit Queue: \")            \r\n            print(sorted(self.pq.queue))\r\n\r\n# Main\r\nos.system('cls')\r\nmpq=MyPQueue()\r\nwhile(1):\r\n    print(\"-----------------------------Priority Queue--------------------------\")\r\n    print(\"1. Insert \\n 2. Delete \\n 3 Display \\n 4. Exit\")\r\n    print(\"-----------------------------------------------------------------------\")\r\n    choice=int(input(\"Enter your choice: \"))\r\n    if(choice==1):\r\n        mpq.insert()\r\n    elif(choice==2):\r\n        mpq.delete()\r\n    elif(choice==3):\r\n        mpq.display()            \r\n    else:\r\n        break<\/pre>\n<h3>Program 2<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"># Implementation of Priority Queue using Module Max Heap\r\nimport queue\r\npq = queue.PriorityQueue()\r\n\r\ndef qinsert():\r\n    n = int(input(\"Enter element for insert: \"))\r\n    pq.put(-n)  # Store negative for max-heap\r\n\r\ndef qdelete():\r\n    if pq.empty():\r\n        print(\"Priority Queue is empty\")\r\n    else:\r\n        print(\"Deleted element is:\", -pq.get())  # Convert back to positive\r\n\r\ndef qdisplay():\r\n    if pq.empty():\r\n        print(\"Priority Queue is empty\")\r\n    else:\r\n        print(\"Priority Queue (sorted by largest first):\", sorted([-x for x in pq.queue], reverse=True))\r\n\r\nwhile True:\r\n    print(\"\\n--- Priority Queue Menu (Max-Heap) ---\")\r\n    print(\"1. Insert\\n2. Delete\\n3. Display\\n4. Exit\")\r\n    choice = int(input(\"Enter your choice: \"))\r\n    \r\n    if choice == 1:\r\n        qinsert()\r\n    elif choice == 2:\r\n        qdelete()\r\n    elif choice == 3:\r\n        qdisplay()\r\n    elif choice == 4:\r\n        break\r\n    else:\r\n        print(\"Invalid choice\")<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 # Implementation of Priority Queue using Module Min Heap import queue import os class MyPQueue: def __init__(self): self.pq=queue.PriorityQueue() def insert(self): n=int(input(&#8220;Enter an element: &#8220;)) self.pq.put(n) def delete(self): if(self.pq.empty()): print(&#8220;Priorty queue is empty&#8221;)&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32847],"tags":[32853,32922,35205,32923,35206,32269,35208,35204,35207],"class_list":["post-146775","post","type-post","status-publish","format-standard","hentry","category-dsa-python-tutorials","tag-dsa-python","tag-dsa-python-practical","tag-dsa-python-priority-queue","tag-dsa-python-program","tag-dsa-python-program-on-priority-queue","tag-priority-queue","tag-priority-queue-in-data-structures","tag-priority-queue-in-dsa-python","tag-priority-queue-in-python"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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