输入学号查找学生pta

以下是一个根据学号查找学生的示例代码：

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

#define MAX_NAME_LEN 20

typedef struct student {
    int no;
    char name[MAX_NAME_LEN];
    struct student *next;
} Student, *List;

List CreateList() {
    List head = NULL, tail = NULL;
    int no;
    char name[MAX_NAME_LEN];
    while (1) {
        scanf("%d", &no);
        if (no == -1) {
            break;
        }
        scanf("%s", name);
        Student *node = (Student *)malloc(sizeof(Student));
        node->no = no;
        strcpy(node->name, name);
        node->next = NULL;
        if (head == NULL) {
            head = node;
            tail = node;
        } else {
            tail->next = node;
            tail = node;
        }
    }
    return head;
}

Student *Find(List head, int no) {
    Student *p = head;
    while (p != NULL) {
        if (p->no == no) {
            return p;
        }
        p = p->next;
    }
    return NULL;
}

int main() {
    List list = CreateList();
    int no;
    scanf("%d", &no);
    Student *p = Find(list, no);
    if (p != NULL) {
        printf("%d %s\n", p->no, p->name);
    } else {
        printf("Not found\n");
    }
    return 0;
}