danhsachlop

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
struct hs
    {
        int CODEstudent;
        char Name[26];
        float ws,pt,pe,fe;
    };
void trim(char a[])
    {
        int i,j,k,h,n;
        char b[100];
        n = strlen(a);
        i=0;
        j=n-1;
        while(a[i]==' ')
          i++;
        while(a[j]==' ')
          j--;
        k=0;
        for(h=i;h<=j;h++)
            b[k++]=a[h];
        b[k]='\0';
        strcpy(a,b);
    }
void InputValidf (float *n)
{
    char c;
    int re, valid=0;
    do{
        fflush(stdin);
        re= scanf ("%f%c",n,&c);
        if (re<0 || re>10)
            printf (" Data type errox !!\n");
        else if (c != '\n')
            printf ("Integer musted be inputted !!\n");
        else
            valid =1;
        if (valid==0)
            printf ("Repeat input again !\n");
    } while (!valid);
}
int FindStd(hs a[], int &RollNo, int size)
{
    bool found = false;
    printf("Enter RollNo to find: "); scanf("%d", &RollNo);
    printf ("STT | MSV | Ten            | Workshop | Progress Test | PE   |   FE\n");
    for(int i=1; i<=size; i++)
        if(a[i].CODEstudent == RollNo)
        {
            found = true;
            printf("\n%2d.  %5d %15s   %6.2f    %6.2f          %6.2f %6.2f\n", i, a[i].CODEstudent, a[i].Name, a[i].ws, a[i].pt, a[i].pe, a[i].fe);
            return i;
        }
    if (!found)
    {
        printf("Roll number not found\n");
        return -1;
    }
}
void EditStd(hs a[], int &CODEstudent, int size)
{
    int i_found;
    i_found = FindStd(a, CODEstudent, size);
    if(i_found!=-1)
    {
        printf("MSV: "); scanf("%d", &a[i_found].CODEstudent);
        fflush(stdin);
        printf("FullName: "); gets(a[i_found].Name);
        printf("workshop: "); scanf("%f", &a[i_found].ws);
        fflush(stdin);
        printf("progress test: "); scanf("%f", &a[i_found].pt);
        fflush(stdin);
        printf("pratical exam: "); scanf("%f", &a[i_found].pe);
        fflush(stdin);
        printf("final exam: "); scanf("%f", &a[i_found].fe);
        fflush(stdin);
    }
    else
        printf("Not found\n");
}
void DeleteStd(hs a[], int &CODEstudent, int *size)
{
    int i_found;
    int i;
    i_found = FindStd(a, CODEstudent, *size);
    if(i_found!=-1)
    {
        for (i=i_found;i<*size;i++)
        a[i]=a[i+1];
        (*size)--;
    }
    else
        printf("Not found\n");
}
int LoadFile(char *filename, hs a[], int *size)
    {
        char ch;
        int i;
        char ten[50], msv[50], workshop[50],pract[50], parte[50],finale[50];

        FILE *fp = fopen(filename,"r+");
        if(fp==NULL)
        {
            printf(" file %s not found\n",filename);
            return(0);
        }
        rewind(fp);
        i=1;

        while(fscanf(fp,"%[^|]|%[^|]|%[^|]|%[^|]|%[^|]|%[^\n]\n",msv,ten,workshop,pract,parte,finale)==6)
        {
            trim(ten);
            trim(msv);
            trim(workshop);
            trim(pract);
            trim(parte);
            trim(finale);
            a[i].CODEstudent = atoi(msv);
            strcpy(a[i].Name,ten);
            a[i].ws = atof(workshop);
            a[i].pt = atof(pract);
            a[i].pe = atof(parte);
            a[i].fe = atof(finale);
            i++;
        }
        *size=i-1;
        fclose(fp);
        return(1);
    }
int SaveFile( char *filename, hs a[], int size)
    {
        char ch;
        int i;
        FILE *fp=NULL;

        fp = fopen(filename, "r+");
        if(fp!=NULL)
        {
            printf("Replace file %s (y/n)?", filename);
            fclose(fp);
            ch = getche();
            if(ch!='y')
                return(0);
        }

        fp = fopen(filename, "w+");
        if(fp!=NULL)
        {
            for(i=1; i<=size; i++)
            {
                fprintf(fp, "\n%5d | %15s | %2.2f | %2.2f | %2.2f | %2.2f", a[i].CODEstudent, a[i].Name, a[i].ws, a[i].pt, a[i].pe, a[i].fe);
            }
            fclose(fp);
        }
        else
            printf("failed");
        return(1);
    }
int main()
{
    char ch1='\0',ch2='\0',ch3='\0',ch4='\0';
    char ma[10];FILE *fp;char buff[255];
    int stdcount=0,i,j,CODEstudent;
    hs a[60];
    system("cls");
    fflush(stdin);
    printf("********************************\n");
    printf("*                              *\n");
    printf("*HE THONG QUAN LI LOP HOC      *\n");
    printf("*1. Quan li danh sach sinh vien*\n");
    printf("*2. Thoat                      *\n");
    printf("*Moi ban nhap lua chon:        *\n");
    printf("*                              *\n");
    printf("*                              *\n");
    printf("********************************\n");
    scanf("%c",&ch1);
    fflush(stdin);
    while (ch1!='2')
    {
        switch (ch1)
        {
            case '1':
            {
                system("cls");
                fflush(stdin);
                printf("******************************************************\n");
                printf("*1. In ra danh sach sinh vien                        *\n");
                printf("*2. Them mot sinh vien moi vao lop                   *\n");
                printf("*3. Tim Sinh Vien Theo Ma                            *\n");
                printf("*4. Sua, xoa mot sinh vien theo ma sinh vien         *\n");
                printf("*5. Nap danh sach tu file                            *\n");
                printf("*6. In danh sach ra file                             *\n");
                printf("*7. Bang diem cua lop                                *\n");
                printf("*8. Thong ke sinh vien trong lop                     *\n");
                printf("*9. Tro ve menu chinh                                *\n");
                printf("*Moi ban nhap lua chon:                              *\n");
                printf("******************************************************\n");
                scanf("%c",&ch2);
                switch (ch2)
                {
                    case '1':
                        {
                        system("cls");
                        fflush(stdin);
                        printf("DANH SACH SINH VIEN\n");
                        if (stdcount==0) printf ("Khong co sinh vien nao...");
                        else
                                        printf ("-----------------------------\n");
                                        printf ("|STT  MSV   Ho Ten          |\n");
                            {
                                for (i=1;i<=stdcount;i++)
                                    {
                                        printf("|%2d. %5d. %16s|\n" ,i,a[i].CODEstudent,a[i].Name);
                                    }
                            }
                                        printf ("-----------------------------\n");
                        system("pause");
                        }
                        break;
                    case '2':
                        {
                            system("cls");
                            fflush(stdin);
                            int kt=0;
                            printf("nhap vao ma so sinh vien: \n");
                            fflush(stdin);
                            scanf("%d",&a[stdcount+1].CODEstudent);
                            for (i=1;i<stdcount;i++) if (a[stdcount+1].CODEstudent==a[i].CODEstudent)
                            {
                                printf("MSSV ban vua nhap da bi trung\n");
                                kt=1;
                                break;
                            }
                            if (kt==0)
                            {
                                stdcount++;
                                fflush(stdin);
                                printf("nhap vao ten sinh vien: \n");
                                fflush(stdin);
                                //InputValidC (&a[stdcount].Name);
                                scanf("%[^\n]",&a[stdcount].Name);
                                printf("nhap vao diem workshop: \n");
                                fflush(stdin);
                                InputValidf (&a[stdcount].ws);
                                printf("nhap vao diem progress test: \n");
                                fflush(stdin);
                                InputValidf (&a[stdcount].pt);
                                printf("nhap vao diem pratical exam: \n");
                                fflush(stdin);
                                InputValidf (&a[stdcount].pe);
                                printf("nhap vao diem final exam: \n");
                                fflush(stdin);
                                InputValidf (&a[stdcount].fe);
                            }
                            system("pause");
                        }
                        break;
                    case '3':
                        {
                             FindStd(a, CODEstudent, stdcount);
                             system("pause");
                        }
                        break;
                    case '4':
                        {
                        int ch;
                        char m[20];
                        printf("Nhap vao 1 de xoa, 2 de sua:\n");
                        scanf("%d",&ch);
                        if(ch>2 || ch<0) printf("Nhap sai, nhap lai!!");
                        fflush(stdin);
                        while (ch==2 || ch==1)
                            {
                                if (ch==1)
                                {
                                    DeleteStd(a, CODEstudent, &stdcount);
                                }
                                if (ch==2)
                                {
                                    EditStd(a,CODEstudent,stdcount);
                                }
                                break;
                            }
                        system("pause");
                        }
                        break;
                    case '5':
                        if(LoadFile("text.dat", a, &stdcount)==1)
                            printf("loaded\n");
                        else
                        printf("error\n");
                        system("pause");
                        break;
                    case '6':
                        if(SaveFile("text.dat", a, stdcount)==1)
                            printf("saved\n");
                        else
                            printf("error");
                        system("pause\n");
                        break;

                    case '7' :
                        {
                            fflush(stdin);
                            system("cls");
                            printf ("BANG DIEM CUA LOP\n");
                            printf("*______________________________________________________________________________*\n");
                            printf ("STT     Full Name      Workshop    Progress Test    Practical Exam   Final Exam\n");
                            for (i=1;i<stdcount;i++)
                            {
                            printf (" %2d. |%15s | %2.2f     |   %2.2f        |    %2.2f          | %2.2f   \n", i, a[i].Name, a[i].ws, a[i].pt, a[i].pe, a[i].fe);
                            }
                            printf("*______________________________________________________________________________*\n");
                            system("pause");
                        }
                        break;
                    case '8':
                        {
                        float tb=0,max=0,min=10;
                        int cc,cc3;
                        char cc2[26],cc4[26];
                        system("cls");
                        printf ("THONG KE CU THE SINH VIEN\n");
                        printf("Passed: \n");
                        for (i=1;i<=stdcount;i++)
                        {
                            if ((a[i].ws>0) && (a[i].pt>0) && (a[i].pe>4) && (a[i].fe>4) && (a[i].ws*0.1+a[i].pt*0.2+a[i].pe*0.4+a[i].fe*0.3) >= 5) printf("%6d - %15s \n",a[i].CODEstudent,a[i].Name);
                        }
                        printf("\n");
                        printf("Sinh vien truot: \n");
                        for (i=1;i<=stdcount;i++)
                        {
                            if ((a[i].ws=0) || (a[i].pt=0) || (a[i].pe<4) || (a[i].fe<4) || (a[i].ws*0.1+a[i].pt*0.2+a[i].pe*0.4+a[i].fe*0.3) < 5) printf("%6d - %15s \n",a[i].CODEstudent,a[i].Name);
                        }
                        printf("\n");
                        printf("Sinh vien duoc hoc bong: \n");
                        for (i=1;i<=stdcount;i++)
                        {
                            if ((a[i].ws/10+a[i].pt/5+a[i].pe*2/5+a[i].fe*3/10 +2)>= 9) printf("%6d - %15s \n",a[i].CODEstudent,a[i].Name);
                        }
                        printf("\n");
                        printf("Sinh vien diem cao nhat la: \n");
                        for (i=1;i<=stdcount;i++)
                        {
                            tb=(a[i].ws/10+a[i].pt/5+a[i].pe*2/5+a[i].fe*3/10 +3);
                            if (tb>=max)
                            {
                            max=tb;
                            cc=a[i].CODEstudent;
                            strcpy(cc2,a[i].Name);
                            }
                        }
                        printf("%6d - %15s Trung binh mon %2.2f\n",cc,cc2,max);
                        printf("Sinh vien diem thap nhat la: \n");
                        for (i=1;i<=stdcount;i++)
                        {
                            tb=(a[i].ws*0.1+a[i].pt*0.2+a[i].pe*0.4+a[i].fe*0.3);
                            if (tb<=min)
                            {
                            min=tb;
                            cc3=a[i].CODEstudent;
                            strcpy(cc4,a[i].Name);
                            }
                        }
                        printf("%6d - %15s Trung binh mon %2.2f\n",cc3,cc4,min);
                        system("pause");
                        }
                        break;
                    case '9':
                        {
                                system("cls");
                                fflush(stdin);
                                printf("******************************************************\n");
                                printf("*Cam on ban da su dung phan mem                      *\n");
                                printf("*Moi chi tiet va gop y xin lien he                   *\n");
                                printf("*                                                    *\n");
                                printf("*                                                    *\n");
                                printf("*                                                    *\n");
                                printf("*                                                    *\n");
                                printf("*                                                    *\n");
                                printf("*                                       Trieu Nam Hai*\n");
                                printf("*                                    SDT: 01683574189*\n");
                                printf("*                       Mail: [email protected]*\n");
                                printf("******************************************************\n");
                                system("pause");
                        }
                        break;
                }
            }
        }
    }
}