Làm thế nào để sắp xếp danh sách quản lý học sinh?

vuphongvncm · May 19, 2022, 2:19am

Em làm thế này thì sắp xếp danh sách mình phải làm sao… mò cả đêm vẫn mà viết vẫn bị lỗi

// DE TAI QUAN LY HOC SINH TRUNG HOC PHO THONG (GVCN)
 #include <stdio.h>
 #include <conio.h>
 #include <string.h>
typedef struct
{
       char ngay;
    char thang;
    int nam;    
}ngaythang;

typedef struct
{
    float van;
    float toan;
    float ly;
    float hoa;
    float sinh;
    float su;
    float dia;
    float anhvan;   
}diemcacmon;

typedef struct
{
    char mshs[100];
    char ten[100];
    ngaythang ngaysinh;
    char diachi[100];
    char sdt[100];
    char gioitinh[100];
    diemcacmon diemso;
    char xeploai[100]; 
}hocsinh;

void demsolan(int a)        // in so lan thuc hien chuong trinh
{
    FILE *f;
    f = fopen("dem.txt","a+b");
    int n;
    int c = fread(&n, sizeof(n), 1, f);
    fclose(f);
    f = fopen("dem.txt","w+b"); 
    if(c=0) n=0;  
    n=n+1;   
    fwrite(&n, sizeof(n), 1, 
    f);
    printf("Chuong trinh da thuc hien %d lan...\n", n);
    fclose(f);
    getch();
}

void nhaphs(hocsinh s)   // Nhap thong tin hoc sinh
{
    FILE *f;
    f=fopen("DanhSachHocSinh.txt","wb"); 
    int n; 
    printf("Nhap bao nhieu HS:"); scanf("%d",&n);   
    for(int i=1;i<=n;i++)
    {      
       printf("Sinh vien thu %d\n",i);
       fflush(stdin);
       printf("- MSHS:"); gets(s.mshs);
       printf("- HO VA TEN:"); gets(s.ten);
       printf("- GIOI TINH:"); gets(s.gioitinh);
       printf("- Ngay sinh:"); scanf("%d",&s.ngaysinh.ngay);
       printf("- Thang sinh:"); scanf("%d",&s.ngaysinh.thang);
       printf("- Nam sinh:"); scanf("%d",&s.ngaysinh.nam);
       fflush(stdin);
       printf("- SDT:"); gets(s.sdt);
       printf("- DIA CHI:"); gets(s.diachi);
       printf("NHAP DIEM CUA HOC SINH\n");
       printf("- Ngu Van:"); scanf("%f",&s.diemso.van);
       printf("- Toan:"); scanf("%f",&s.diemso.toan);
       printf("- Ly:"); scanf("%f",&s.diemso.ly);
       printf("- Hoa:"); scanf("%f",&s.diemso.hoa);
       printf("- Sinh:"); scanf("%f",&s.diemso.sinh);
       printf("- Su:"); scanf("%f",&s.diemso.su);
       printf("- Dia:"); scanf("%f",&s.diemso.dia);
       printf("- Anh Van:"); scanf("%1f",&s.diemso.anhvan);       
       fwrite(&s,sizeof(s),1,f);       
    }
    printf("-----------------------------------------------------------------\n");
    fclose(f);
    getch();
}


void indiemhs(hocsinh s)  // In diem hoc sinh ra man hinh   
{
    FILE *f;        
    f=fopen("DanhSachHocSinh.txt","rb");    
    printf("   MSHS   |\tHO VA TEN\t |          NGU VAN  | TOAN |  LY  |  HOA  |  SINH  |  SU  |  DIA  | ANH VAN | TRUNG BINH | XEP LOAI\n");
    fread(&s,sizeof(s),1,f);            
    while(!feof(f))
    {   
    float a=((s.diemso.van*2)+(s.diemso.toan*2)+s.diemso.ly+s.diemso.hoa+s.diemso.sinh+s.diemso.su+s.diemso.dia+s.diemso.anhvan)/10;                                                            
        if(a>=8 && s.diemso.van>=6.5 && s.diemso.toan>=6.5 && s.diemso.ly>=6.5 && s.diemso.hoa>=6.5 && s.diemso.sinh>=6.5 && s.diemso.su>=6.5 && s.diemso.dia>=6.5 && s.diemso.anhvan>=6.5) printf(" %s   %s      \t\t%.1f     %.1f    %.1f    %.1f     %.1f      %.1f    %.1f      %.1f       %.1f      HSG\n",s.mshs,s.ten,s.diemso.van,s.diemso.toan,s.diemso.ly,s.diemso.hoa,s.diemso.sinh,s.diemso.su,s.diemso.dia,s.diemso.anhvan,a);
        else if(a>=6.5 && s.diemso.van>=5 && s.diemso.toan>=5 && s.diemso.ly>=5 && s.diemso.hoa>=5 && s.diemso.sinh>=5 && s.diemso.su>=5 && s.diemso.dia>=5 && s.diemso.anhvan>=5) printf(" %s   %s      \t\t%.1f     %.1f    %.1f    %.1f     %.1f      %.1f    %.1f      %.1f       %.1f      HSK\n",s.mshs,s.ten,s.diemso.van,s.diemso.toan,s.diemso.ly,s.diemso.hoa,s.diemso.sinh,s.diemso.su,s.diemso.dia,s.diemso.anhvan,a);
                else if (a>=5 && s.diemso.van>=3.5 && s.diemso.toan>=3.5 && s.diemso.ly>=3.5 && s.diemso.hoa>=3.5 && s.diemso.sinh>=3.5 && s.diemso.su>=3.5 && s.diemso.dia>=3.5 && s.diemso.anhvan>=3.5) printf(" %s   %s      \t\t%.1f     %.1f    %.1f    %.1f     %.1f      %.1f    %.1f      %.1f       %.1f      HSTB\n",s.mshs,s.ten,s.diemso.van,s.diemso.toan,s.diemso.ly,s.diemso.hoa,s.diemso.sinh,s.diemso.su,s.diemso.dia,s.diemso.anhvan,a);
                        else if(a>=3.5 && s.diemso.van>=2 && s.diemso.toan>=2 && s.diemso.ly>=2 && s.diemso.hoa>=2 && s.diemso.sinh>=2 && s.diemso.su>=2 && s.diemso.dia>=2 && s.diemso.anhvan>=2) printf(" %s   %s      \t\t%.1f     %.1f    %.1f    %.1f     %.1f      %.1f    %.1f      %.1f       %.1f       HSY\n",s.mshs,s.ten,s.diemso.van,s.diemso.toan,s.diemso.ly,s.diemso.hoa,s.diemso.sinh,s.diemso.su,s.diemso.dia,s.diemso.anhvan,a);
                                else printf(" %s   %s      \t\t%.1f     %.1f    %.1f    %.1f     %.1f      %.1f    %.1f      %.1f       %.1f       HSK\n",s.mshs,s.ten,s.diemso.van,s.diemso.toan,s.diemso.ly,s.diemso.hoa,s.diemso.sinh,s.diemso.su,s.diemso.dia,s.diemso.anhvan,a);
                        
        fread(&s,sizeof(s),1,f);
    }   
    printf("-------------------------------------------------------------------------------------------------\n");
    fclose(f);
    getch();
}

void inhs(hocsinh s)   // In thong tin hoc sinh ra man hinh
{
    FILE *f;
    f=fopen("DanhSachHocSinh.txt","rb");
    printf("  MSHS\t|\tHO VA TEN\t| GIOI TINH |  NAM SINH  |     SDT     |  DIA CHI\n");
    fread(&s,sizeof(s),1,f);    
    while(!feof(f))
    {
      printf("%s   %s\t   %s\t      %d-%d-%d\t   %s\t   %s\n",s.mshs,s.ten,s.gioitinh,s.ngaysinh.ngay,s.ngaysinh.thang,s.ngaysinh.nam,s.sdt,s.diachi);    
      fread(&s,sizeof(s),1,f);
    }
    printf("--------------------------------------------------------------------------------\n");
    fclose(f);
    getch();
}

void timkiemhs(hocsinh s)    // Tim kiem bang ma so hoc sinh
{
    char maso[10];  
    fflush(stdin);
    FILE *f;
    f=fopen("DanhSachHocSinh.txt","rb");        
    int timkiem=0;
    printf("- Nhap MSHS can tim:"); gets(maso);
    fflush(stdin);
    while(timkiem==0 && !feof(f))
    {
        fread(&s,sizeof(s),1,f);
        if(strcmp(s.mshs,maso)==0) timkiem=1;
    }
    printf("-----------------------------------\n");
    float a=((s.diemso.van*2)+(s.diemso.toan*2)+s.diemso.ly+s.diemso.hoa+s.diemso.sinh+s.diemso.su+s.diemso.dia+s.diemso.anhvan)/10;
    if(timkiem==1)
    {
        printf("Da tim thay hoc sinh co ma so:%s\n",maso);  
        printf("- HO VA TEN: %s\n",s.ten);
        printf("- GIOI TINH: %s\n",s.gioitinh); 
        printf("- Nam sinh: %d-%d-%d\n",s.ngaysinh.ngay,s.ngaysinh.thang,s.ngaysinh.nam);       
        printf("- SDT: %s\n",s.sdt); 
        printf("- DIA CHI :%s\n",s.diachi);
        printf("------------------------\n");
        printf("DIEM CUA HOC SINH""\n");
        printf("- Ngu Van: %.1f\n",s.diemso.van);
        printf("- Toan: %.1f\n",s.diemso.toan);
        printf("- Ly: %.1f\n",s.diemso.ly);
        printf("- Hoa: %.1f\n",s.diemso.hoa); 
        printf("- Sinh: %.1f\n",s.diemso.sinh);
        printf("- Su: %.1f\n",s.diemso.su);
        printf("- Dia: %.1f\n",s.diemso.dia); 
        printf("- Anh Van: %.1f\n",s.diemso.anhvan);
        printf("- Diem trung binh:%.1f\n",a);
        if(a>=8 && s.diemso.van>=6.5 && s.diemso.toan>=6.5 && s.diemso.ly>=6.5 && s.diemso.hoa>=6.5 && s.diemso.sinh>=6.5 && s.diemso.su>=6.5 && s.diemso.dia>=6.5 && s.diemso.anhvan>=6.5) printf("- Xep loai: Hoc sinh gioi.\n");
        else if(a>=6.5 && s.diemso.van>=5 && s.diemso.toan>=5 && s.diemso.ly>=5 && s.diemso.hoa>=5 && s.diemso.sinh>=5 && s.diemso.su>=5 && s.diemso.dia>=5 && s.diemso.anhvan>=5) printf("- Xep loai: Hoc sinh kha.\n");
                else if (a>=5 && s.diemso.van>=3.5 && s.diemso.toan>=3.5 && s.diemso.ly>=3.5 && s.diemso.hoa>=3.5 && s.diemso.sinh>=3.5 && s.diemso.su>=3.5 && s.diemso.dia>=3.5 && s.diemso.anhvan>=3.5) printf("- Xep loai: Hoc sinh trung binh.\n");
                        else if(a>=3.5 && s.diemso.van>=2 && s.diemso.toan>=2 && s.diemso.ly>=2 && s.diemso.hoa>=2 && s.diemso.sinh>=2 && s.diemso.su>=2 && s.diemso.dia>=2 && s.diemso.anhvan>=2) printf("- Xep loai: Hoc sinh yeu.\n");
                                else printf("- Xep loai: Hoc sinh kem.\n");       
    } else printf("Khong tim thay hoc sinh co ma so %s\n",maso);
    fclose(f);
    printf("-----------------------------------\n");
    getch();    
}

void themhocsinh(hocsinh s)  //them hoc sinh vao danh sach
{
    FILE *f;
    f=fopen("DanhSachHocSinh.txt","ab");
    int n;
    printf("Them bao nhieu HS:"); scanf("%d",&n);
    fread(&s,sizeof(s),1,f);
    for(int i=1;i<=n;i++)
    {
       fread(&s,sizeof(s),1,f);
       printf("Hoc sinh thu %d\n",i);
       fflush(stdin);
       printf("- MSHS:"); gets(s.mshs);
       printf("- HO VA TEN:"); gets(s.ten);
       printf("- GIOI TINH:"); gets(s.gioitinh);
       printf("- Ngay sinh:"); scanf("%d",&s.ngaysinh.ngay);
       printf("- Thang sinh:"); scanf("%d",&s.ngaysinh.thang);
       printf("- Nam sinh:"); scanf("%d",&s.ngaysinh.nam);
       fflush(stdin);
       printf("- SDT:"); gets(s.sdt);
       printf("- DIA CHI:"); gets(s.diachi);
       printf("NHAP DIEM CUA HOC SINH\n");
       printf("- Ngu Van:"); scanf("%f",&s.diemso.van);
       printf("- Toan:"); scanf("%f",&s.diemso.toan);
       printf("- Ly:"); scanf("%f",&s.diemso.ly);
       printf("- Hoa:"); scanf("%f",&s.diemso.hoa);
       printf("- Sinh:"); scanf("%f",&s.diemso.sinh);
       printf("- Su:"); scanf("%f",&s.diemso.su);
       printf("- Dia:"); scanf("%f",&s.diemso.dia);
       printf("- Anh Van:"); scanf("%1f",&s.diemso.anhvan);       
       fwrite(&s,sizeof(s),1,f);       
    }
    printf("-----------------------------------------------------------------\n");
    fclose(f);
    getch();
}

void sapxep(hocsinh s)
{
}

int main()
{
    int c;  int a;
    FILE *f;
    f=fopen("DanhSachHocSinh.txt","ab");            
    hocsinh hs; 
    for(;;)
    {
        printf("1. Nhap danh sach hoc sinh\n");
        printf("2. Xem danh sach hoc sinh\n");
        printf("3. Xem diem hoc sinh\n");
        printf("4. Tim kiem hoc sinh\n");
        printf("5. Them hoc sinh\n");
        printf("6. Xoa hoc sinh\n");        
        printf("10. Thoat ra\n");
        scanf("%d",&c);     
        if(c==1) nhaphs(hs); 
         else if(c==2) inhs(hs);
                else if(c==3) indiemhs(hs);
                       else if(c==4) timkiemhs(hs);
                               else if(c==5) themhocsinh(hs);
                                      else if(c==6) sapxep(hs);
                                             else if(c==10) 
                                               {
                                                   demsolan(a);
                                                    break;
                                               }
                                             
    }
    fclose(f);
    getch();
    return 0;           
}

kiencon · October 19, 2017, 4:11am

e đọc file txt vào ram rồi sắp xếp mảng vừa đọc theo 1 tiêu chí sắp xếp nào đó như giảm dần đtb, sau đó ghi lại ra file,

vuphongvncm · October 19, 2017, 6:20am

sắp xếp 1 mảng trong cấu trúc là tất cả các trường còn lại đều sắp xếp theo lun hả a

rogp10 · October 19, 2017, 7:05am

Mình thì mình trải thêm 1 dọc pointer (tạm) nữa, chứ vầy thì phê lắm

Vả lại phần xếp loại có thể viết lại.

noname00 · October 19, 2017, 7:52am

Bạn phải viết 1 hàm so sánh 2 struct riêng, sau đó sort dựa trên kết quả so sánh.