{"id":145774,"date":"2025-07-09T18:30:34","date_gmt":"2025-07-09T13:00:34","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145774"},"modified":"2025-07-09T18:30:34","modified_gmt":"2025-07-09T13:00:34","slug":"music-playlist-using-data-structures","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/music-playlist-using-data-structures\/","title":{"rendered":"DSA Project &#8211; Music Playlist"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Music Play List Based on Duobly Linked List\r\n\r\n#include &lt;stdio.h&gt;\r\n#include &lt;stdlib.h&gt;\r\n#include &lt;string.h&gt;\r\n\r\n#define MAX_TITLE_LEN 100\r\n\r\n\/\/ Doubly Linked List Node\r\ntypedef struct Song \r\n{\r\n    struct Song* prev;\r\n    char title[MAX_TITLE_LEN];\r\n    struct Song* next;\r\n} Song;\r\n\r\nSong* head = NULL;\r\nSong* tail = NULL;\r\nSong* current = NULL;\r\n\r\n\/\/ Function to create a new song node\r\nSong* createSong(char* title) \r\n{\r\n    Song* newSong = (Song*)malloc(sizeof(Song));\r\n    strcpy(newSong-&gt;title, title);\r\n    newSong-&gt;prev = NULL;\r\n    newSong-&gt;next = NULL;\r\n    return newSong;\r\n}\r\n\r\n\/\/ Add song to end of playlist\r\nvoid addSong(char* title) \r\n{\r\n    Song* newSong = createSong(title);\r\n    if (head == NULL) \r\n    {\r\n        head = tail = current = newSong;\r\n    } else \r\n    {\r\n        tail-&gt;next = newSong;\r\n        newSong-&gt;prev = tail;\r\n        tail = newSong;\r\n    }\r\n    printf(\"Added: %s\\n\", title);\r\n}\r\n\r\n\/\/ Delete current song\r\nvoid deleteCurrentSong() \r\n{\r\n    if (current == NULL) {\r\n        printf(\"No song to delete.\\n\");\r\n        return;\r\n    }\r\n\r\n    printf(\"Deleting: %s\\n\", current-&gt;title);\r\n\r\n    if (current-&gt;prev)\r\n        current-&gt;prev-&gt;next = current-&gt;next;\r\n    else\r\n        head = current-&gt;next;\r\n\r\n    if (current-&gt;next)\r\n        current-&gt;next-&gt;prev = current-&gt;prev;\r\n    else\r\n        tail = current-&gt;prev;\r\n\r\n    Song* temp = current;\r\n    current = current-&gt;next ? current-&gt;next : current-&gt;prev;\r\n    free(temp);\r\n}\r\n\r\n\/\/ Move to next song\r\nvoid nextSong() \r\n{\r\n    if (current!=NULL &amp;&amp; current-&gt;next!=NULL) \r\n    {\r\n        current = current-&gt;next;\r\n        printf(\"Now playing: %s\\n\", current-&gt;title);\r\n    } \r\n    else \r\n    {\r\n        printf(\"You're at the end of the playlist.\\n\");\r\n    }\r\n}\r\n\r\n\/\/ Move to previous song\r\nvoid prevSong() {\r\n    if (current &amp;&amp; current-&gt;prev) \r\n    {\r\n        current = current-&gt;prev;\r\n        printf(\"Now playing: %s\\n\", current-&gt;title);\r\n    } else {\r\n        printf(\"You're at the start of the playlist.\\n\");\r\n    }\r\n}\r\n\r\n\/\/ Display playlist forward\r\nvoid displayPlaylist() \r\n{\r\n   if(head==NULL) \r\n    printf(\"\\n Play list is empty......\");\r\n  else\r\n  {  \r\n    Song* temp = head;\r\n    printf(\"\\nPlaylist:\\n\");\r\n    while (temp != NULL) \r\n    {\r\n        if (temp == current)\r\n            printf(\"-&gt; %s [CURRENT]\\n\", temp-&gt;title);\r\n        else\r\n            printf(\"   %s\\n\", temp-&gt;title);\r\n        temp = temp-&gt;next;\r\n    }\r\n    printf(\"\\n\");\r\n}  \r\n}\r\n\r\n\/\/ Main menu\r\nint main() {\r\n    int choice;\r\n    char title[MAX_TITLE_LEN];\r\n\r\n    while (1) \r\n    {\r\n        printf(\"\\n--- Music Playlist ---\\n\");\r\n        printf(\"1. Add Song\\n\");\r\n        printf(\"2. Delete Current Song\\n\");\r\n        printf(\"3. Next Song\\n\");\r\n        printf(\"4. Previous Song\\n\");\r\n        printf(\"5. Show Playlist\\n\");\r\n        printf(\"6. Exit\\n\");\r\n        printf(\"Enter your choice: \");\r\n        scanf(\"%d\", &amp;choice);\r\n        getchar(); \/\/ consume newline\r\n\r\n        switch (choice) \r\n        {\r\n            case 1:\r\n                printf(\"Enter song title: \");\r\n                fgets(title, MAX_TITLE_LEN, stdin);\r\n                title[strcspn(title, \"\\n\")] = '\\0'; \/\/ remove newline\r\n                addSong(title);\r\n                break;\r\n            case 2:\r\n                deleteCurrentSong();\r\n                break;\r\n            case 3:\r\n                nextSong();\r\n                break;\r\n            case 4:\r\n                prevSong();\r\n                break;\r\n            case 5:\r\n                displayPlaylist();\r\n                break;\r\n            case 6:\r\n                printf(\"Exiting playlist.\\n\");\r\n                return 0;\r\n            default:\r\n                printf(\"Invalid choice.\\n\");\r\n        }\r\n    }\r\n\r\n    return 0;\r\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ Music Play List Based on Duobly Linked List #include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; #include &lt;string.h&gt; #define MAX_TITLE_LEN 100 \/\/ Doubly Linked List Node typedef struct Song { struct Song* prev; char title[MAX_TITLE_LEN];&#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":[24020],"tags":[24331,34845,34846,34847,34844,34833,34853,34837,34854,34852],"class_list":["post-145774","post","type-post","status-publish","format-standard","hentry","category-data-structure-tutorials","tag-data-structures","tag-data-structures-practical","tag-data-structures-program","tag-data-structures-project","tag-dsa","tag-music-playlist","tag-music-playlist-in-data-structures","tag-music-playlist-project","tag-music-playlist-project-in-data-structures","tag-music-playlist-using-data-structures"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DSA Project - Music Playlist - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/music-playlist-using-data-structures\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DSA Project - Music Playlist - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Music Play List Based on Duobly Linked List #include &lt;stdio.h&gt; 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