C语言线性链表学生管理系统总分排名

以下是一个C语言线性链表学生管理系统总分排名的示例：

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

// 定义学生结构体
typedef struct student {
    int num; // 学号
    char name[20]; // 姓名
    int score; // 分数
    int total; // 总分
    struct student *next; // 下一个学生节点
} Student;

// 创建学生节点
Student *createStudent(int num, char *name, int score) {
    Student *newStudent = (Student *)malloc(sizeof(Student));
    newStudent->num = num;
    strcpy(newStudent->name, name);
    newStudent->score = score;
    newStudent->total = 0;
    newStudent->next = NULL;
    return newStudent;
}

// 添加学生节点到链表尾部
void addStudent(Student **head, Student *newStudent) {
    if (*head == NULL) {
        *head = newStudent;
    } else {
        Student *current = *head;
        while (current->next != NULL) {
            current = current->next;
        }
        current->next = newStudent;
    }
}

// 计算学生总分
void calculateTotal(Student *head) {
    Student *current = head;
    while (current != NULL) {
        current->total = current->score;
        current = current->next;
    }
}

// 根据总分对学生进行排名
void rankStudents(Student *head) {
    Student *current = head;
    while (current != NULL) {
        Student *temp = current->next;
        while (temp != NULL) {
            if (temp->total > current->total) {
                // 交换学生节点位置
                int num = current->num;
                char name[20];
                strcpy(name, current->name);
                int score = current->score;
                int total = current->total;

                current->num = temp->num;
                strcpy(current->name, temp->name);
                current->score = temp->score;
                current->total = temp->total;

                temp->num = num;
                strcpy(temp->name, name);
                temp->score = score;
                temp->total = total;
            }
            temp = temp->next;
        }
        current = current->next;
    }
}

// 打印学生信息及排名
void printStudents(Student *head) {
    Student *current = head;
    int rank = 1;
    while (current != NULL) {
        printf("Rank: %d, Num: %d, Name: %s, Score: %d, Total: %d\n", rank, current->num, current->name, current->score, current->total);
        rank++;
        current = current->next;
    }
}

int main() {
    Student *head = NULL;

    // 添加学生节点
    addStudent(&head, createStudent(1, "Alice", 80));
    addStudent(&head, createStudent(2, "Bob", 90));
    addStudent(&head, createStudent(3, "Charlie", 85));

    // 计算学生总分
    calculateTotal(head);

    // 根据总分排名
    rankStudents(head);

    // 打印学生信息及排名
    printStudents(head);

    return 0;
}