Struct Sinh Vien

#include <stdio.h>
#include <conio.h>
#include <Windows.h>
#include <string.h>
#pragma pack (1)

struct SinhVien
{
    char name[50];
    int id;
    char sclass[20];
};
typedef struct SinhVien SINHVIEN;

void NhapSinhVien(SINHVIEN A[50], int &n);
void XuatSinhVien(SINHVIEN A[50], int n);
void TimSinhVien(SINHVIEN A[50], int n);

void main()
{
    SINHVIEN A[50];
    int n = 0;
    while (1)
    {
        int choice;
        printf("\n*---------------- MENU ----------------*");
        printf("\n| 1. Nhap du lieu sinh vien            |");
        printf("\n| 2. Xuat du lieu sinh vien            |");
        printf("\n| 3. Tim sinh vien theo ten            |");
        printf("\n| 4. Thoat                             |");
        printf("\n*--------------------------------------*");
        printf("\n\nNhap lua chon cua ban: ");
        scanf("%d", &choice);
        switch (choice)
        {
        case 1:
            NhapSinhVien(A,n);
            break;
        case 2:
            XuatSinhVien(A,n);
            break;
        case 3:
            TimSinhVien(A,n);
            break;
        case 4:
            exit(0);
        default:
            system("cls");
            printf("Nhap lai lua chon tu 1 --> 4 !");
            break;
        }
    }
}

void NhapSinhVien(SINHVIEN A[50], int &n)
{
    system("cls");
    printf("\nNhap N danh sach sinh vien: ");
    scanf("%d", &n);
    system("cls");

    for (int i = 0; i < n; i++)
    {
        printf("\nNHAP SINH VIEN %d", i + 1);

        fflush(stdin);
        printf("\nNhap Ho Ten: ");
        gets(A[i].name);

        printf("\nNhap MSSV: ");
        scanf("%d", &A[i].id);

        fflush(stdin);
        printf("\nNhap lop: ");
        scanf("%s", &A[i].sclass);
        system("cls");
    }
}

void XuatSinhVien(SINHVIEN A[50],int n)
{
    system("cls");
    for (int i = 0; i < n; i++)
    {
        printf("\n------------------ THONG TIN SINH VIEN %d ------------------", i + 1);
        printf("\nHo va Ten: %s", A[i].name);
        printf("\nMSSV: %d", A[i].id);
        printf("\nLop: %s", A[i].sclass);
        printf("\n------------------------------------------------------------\n");
    }
    _getch();
    system("cls");
}

void TimSinhVien(SINHVIEN A[50], int n)
{
    char fname[50];
    system("cls");
    fflush(stdin);
    printf("\nNhap ten sinh vien can tim: ");
    gets(fname);

    for (int i = 0; i < n; i++)
    {
        int kq = strcmp(A[i].name, fname);
        if (kq==0)
        {
            printf("\n------------------ THONG TIN SINH VIEN %d ------------------", i + 1);
            printf("\nHo va Ten: %s", A[i].name);
            printf("\nMSSV: %d", A[i].id);
            printf("\nLop: %s", A[i].sclass);
            printf("\n------------------------------------------------------------\n");
        }
    }
    _getch();
    system("cls");
}