{"id":145772,"date":"2025-07-09T18:02:19","date_gmt":"2025-07-09T12:32:19","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145772"},"modified":"2025-07-09T18:02:19","modified_gmt":"2025-07-09T12:32:19","slug":"library-book-management-system-using-data-structures","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/library-book-management-system-using-data-structures\/","title":{"rendered":"DSA Project &#8211; Library Book Management System"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Project Library Books Management System using doubly linked list\r\n#include &lt;stdio.h&gt;\r\n#include &lt;stdlib.h&gt;\r\n#include &lt;string.h&gt;\r\n\r\nstruct Book {\r\n    int id;\r\n    char title[100];\r\n    char author[100];\r\n    struct Book *prev;\r\n    struct Book *next;\r\n};\r\n\r\nstruct Book *head = NULL;\r\n\r\n\/\/ Function to create a new book node\r\nstruct Book* createBook(int id, const char* title, const char* author)\r\n {\r\n    struct Book* newBook = (struct Book*)malloc(sizeof(struct Book));\r\n    newBook-&gt;id = id;\r\n    strcpy(newBook-&gt;title, title);\r\n    strcpy(newBook-&gt;author, author);\r\n    newBook-&gt;prev = NULL;\r\n    newBook-&gt;next = NULL;\r\n    return newBook;\r\n}\r\n\r\n\/\/ Add book to the end of the list\r\nvoid addBook(int id, const char* title, const char* author) {\r\n    struct Book* newBook = createBook(id, title, author);\r\n    if (head == NULL) {\r\n        head = newBook;\r\n        return;\r\n    }\r\n\r\n    struct Book* temp = head;\r\n    while (temp-&gt;next != NULL)\r\n        temp = temp-&gt;next;\r\n\r\n    temp-&gt;next = newBook;\r\n    newBook-&gt;prev = temp;\r\n    printf(\"Book added successfully.\\n\");\r\n}\r\n\r\n\/\/ Display all books\r\nvoid displayBooks() {\r\n    if (head == NULL) {\r\n        printf(\"No books in the library.\\n\");\r\n        return;\r\n    }\r\n\r\n    struct Book* temp = head;\r\n    \r\n    printf(\"\\nBooks in Library:\\n\");\r\n    printf(\"ID\\tTitle\\t\\tAuthor\\n\");\r\n    printf(\"\\n---------------------------------------------\\n\");\r\n    while (temp != NULL) {\r\n        printf(\"%d\\t%s\\t\\t%s\\n\", temp-&gt;id, temp-&gt;title, temp-&gt;author);\r\n        temp = temp-&gt;next;\r\n    }\r\n    printf(\"\\n--------------------------------------------\");\r\n}\r\n\r\n\/\/ Search for a book by ID\r\nvoid searchBook(int id) {\r\n    struct Book* temp = head;\r\n    while (temp != NULL) {\r\n        if (temp-&gt;id == id) {\r\n            printf(\"Book found:\\n\");\r\n            printf(\"ID: %d\\nTitle: %s\\nAuthor: %s\\n\", temp-&gt;id, temp-&gt;title, temp-&gt;author);\r\n            return;\r\n        }\r\n        temp = temp-&gt;next;\r\n    }\r\n    printf(\"Book with ID %d not found.\\n\", id);\r\n}\r\n\r\n\/\/ Delete a book by ID\r\nvoid deleteBook(int id) {\r\n    struct Book* temp = head;\r\n\r\n    while (temp != NULL &amp;&amp; temp-&gt;id != id)\r\n        temp = temp-&gt;next;\r\n\r\n    if (temp == NULL) \r\n    {\r\n        printf(\"Book not found.\\n\");\r\n        return;\r\n    }\r\n    int choice;\r\n    printf(\"ID: %d\\nTitle: %s\\nAuthor: %s\\n\", temp-&gt;id, temp-&gt;title, temp-&gt;author);\r\n    printf(\"\\n Are you sure want to delete(1-Yes): \");\r\n    scanf(\"%d\",&amp;choice);\r\n  if(choice==1)  \r\n { \r\n    if (temp-&gt;prev != NULL)\r\n        temp-&gt;prev-&gt;next = temp-&gt;next;\r\n    else\r\n        head = temp-&gt;next; \/\/ deleting head\r\n\r\n    if (temp-&gt;next != NULL)\r\n        temp-&gt;next-&gt;prev = temp-&gt;prev;\r\n\r\n    free(temp);\r\n    printf(\"Book deleted successfully.\\n\");\r\n }   \r\n}\r\n\r\n\/\/ Main menu\r\nint main() {\r\n    int choice, id;\r\n    char title[100], author[100];\r\n\r\n    while (1) {\r\n        printf(\"\\n===== Library Menu =====\\n\");\r\n        printf(\"1. Add Book\\n\");\r\n        printf(\"2. Delete Book\\n\");\r\n        printf(\"3. Display All Books\\n\");\r\n        printf(\"4. Search Book by ID\\n\");\r\n        printf(\"5. Exit\\n\");\r\n        printf(\"Enter your choice: \");\r\n        scanf(\"%d\", &amp;choice);\r\n        getchar(); \/\/ to consume newline\r\n\r\n        switch (choice) {\r\n            case 1:\r\n                printf(\"Enter Book ID: \");\r\n                scanf(\"%d\", &amp;id);\r\n                getchar();\r\n                printf(\"Enter Book Title: \");\r\n                fgets(title, sizeof(title), stdin);\r\n                title[strcspn(title, \"\\n\")] = '\\0'; \/\/ remove newline   \/\/ gets(title)\r\n                printf(\"Enter Book Author: \");\r\n                fgets(author, sizeof(author), stdin);\r\n                author[strcspn(author, \"\\n\")] = '\\0';\r\n                addBook(id, title, author);\r\n                break;\r\n\r\n            case 2:\r\n                printf(\"Enter Book ID to delete: \");\r\n                scanf(\"%d\", &amp;id);\r\n                deleteBook(id);\r\n                break;\r\n\r\n            case 3:\r\n                displayBooks();\r\n                break;\r\n\r\n            case 4:\r\n                printf(\"Enter Book ID to search: \");\r\n                scanf(\"%d\", &amp;id);\r\n                searchBook(id);\r\n                break;\r\n\r\n            case 5:\r\n                printf(\"Exiting program.\\n\");\r\n                exit(0);\r\n\r\n            default:\r\n                printf(\"Invalid choice. Try again.\\n\");\r\n        }\r\n    }\r\n\r\n    return 0;\r\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ Project Library Books Management System using doubly linked list #include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; #include &lt;string.h&gt; struct Book { int id; char title[100]; char author[100]; struct Book *prev; struct Book *next; };&#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":[24331,34845,34846,34847,34844,34792,34794,34848,34849],"class_list":["post-145772","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-library-book-management-system","tag-library-book-management-system-project","tag-library-book-management-system-using-data-structures","tag-library-book-management-system-using-dsa"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DSA Project - Library Book Management System - 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\/library-book-management-system-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 - Library Book Management System - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Project Library Books Management System using doubly linked list #include &lt;stdio.h&gt; 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