C语言实现图书管理系统：按出版日期排序图书信息

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct Book {
    char name[101];
    char author[101];
    char date[11];
};

int cmp(const void* a, const void* b) {
    struct Book* bookA = (struct Book*)a;
    struct Book* bookB = (struct Book*)b;
    return strcmp(bookA->date, bookB->date);
}

int main() {
    int n;
    scanf('%d', &n);
    struct Book* books = (struct Book*)malloc(n * sizeof(struct Book));
    for (int i = 0; i < n; i++) {
        scanf('%s %s %s', books[i].name, books[i].author, books[i].date);
    }
    qsort(books, n, sizeof(struct Book), cmp);
    for (int i = 0; i < n; i++) {
        printf('%s %s %s
', books[i].name, books[i].author, books[i].date);
    }
    free(books);
    return 0;
}