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

using namespace std;
FILE* f1;
typedef struct
{
    char imya[30];
    char familia[30];
    char otchestvo[30];
    char gorod[30];
    int ball;

} Tabitur;

Tabitur abitur[30];
char name[20];
int nst = 0;
int menu();
void nnf();
void newf();
void spisok();
void opf();
void resc();
void resf();

int main()
{
    while (true)
    {
        switch (menu())
        {
        case 1:nnf(); break;
        case 2:newf(); break;
        case 3:spisok(); break;
        case 4:opf(); break;
        case 5:resc(); break;
        case 6:resf(); break;
        case 7:bubble(); break;
        case 8:quicksort(); break;
        case 9:return 0;
        default:"Vibrano ne pravilno !";
        }
        puts("Press any key to continue");
        getch();  system("cls");
    }
}
int menu()
{
    cout << "Viberite:" << endl;
    cout << "1.Vvod file name" << endl;
    cout << "2.New file" << endl;
    cout << "3.Vvesti spisok" << endl;
    cout << "4.Open file" << endl;
    cout << "5.Vivesti result" << endl;
    cout << "6.Vivesti v file" << endl;
    cout << "7.Exit" << endl;
    int i;
    cin >> i;
    return i;
}
void nnf()
{
    cout << "Vvedite file name" << endl;
    cin >> name;
}
void newf()
{
    if ((f1 = fopen(name, "wb")) == NULL)
    {
        cout << "Oshibka pri sozdanii" << endl;
        exit(1);
    }
    cout << "OK" << endl;
    fclose(f1);
}
void spisok()
{
    if ((f1 = fopen(name, "rb+")) == NULL)
    {
        cout << "Oshibka pri sozdanii" << endl;
        exit(1);
    }
    cout << "Vvedite chislo abiturientov" << endl;
    cin >> nst;
    for (int i = 0; i < nst; i++)
    {
        cout << "Vvedite imya:";
        cin >> abitur[i].imya;
        cout << "Vvedite familiu:";
        cin >> abitur[i].familia;
        cout << "Vvedite otchestvo:";
        cin >> abitur[i].otchestvo;
        cout << "Vvedite gorod projivania:";
        cin >> abitur[i].gorod;
        cout << "Vvedite prohodnoi ball:";
        cin >> abitur[i].ball;
        fwrite(&abitur[i], sizeof(Tabitur), 1, f1);
    }
    fclose(f1);
}
void opf()
{
    if ((f1 = fopen(name, "rb")) == NULL)
    {
        cout << "Oshibka pri otkritii" << endl;
        exit(1);
    }
    nst = 0; Tabitur std;
    while (true)
    {
        int nwrt = fread(&std, sizeof(Tabitur), 1, f1);
        if (nwrt != 1) break;
        abitur[nst] = std;
        cout << abitur[nst].imya << "" << abitur[nst].familia << "" << abitur[nst].otchestvo << "" << abitur[nst].gorod << "" << abitur[nst].ball << endl;
        nst++;
    }
    fclose(f1);
}
void resc()
{
    int i;
    for (i = 0; i < nst; i++)
        if (abitur[i].ball > 220 && strcmp(abitur[i].gorod, "Minsk") == 0)
            cout << abitur[i].imya << "" << abitur[i].familia << "" << abitur[i].otchestvo << "" << abitur[i].gorod << "" << abitur[i].ball << endl;
}
void resf()
{
    char namet[30];
    FILE* f1;
    cout << "Vvedite imya file" << endl;
    cin >> namet;
    if ((f1 = fopen(namet, "w")) == NULL)
    {
        cout << "Oshibka pri sozdanii" << endl;
        exit(1);
    }
    char s[80];
    for (int i = 0; i < nst; i++)
        if (abitur[i].ball > 220 && strcmp(abitur[i].gorod, "Minsk") == 0)
        {
            strcpy(s, abitur[i].imya);
            strcat(s, "");
            fputs(s, f1);
            strcpy(s, abitur[i].familia);
            strcat(s, "");
            fputs(s, f1);
            strcpy(s, abitur[i].otchestvo);
            strcat(s, "");
            fputs(s, f1);
            strcpy(s, abitur[i].gorod);
            strcat(s, "");
            fputs(s, f1);
        }
    fclose(f1);
}

void bubble(int abitur[], int n)
{
    int i, j, t;
    for (i=1; i<n; i++)
    {
        for(j=n-1; j=>i;j--)
        {
            if(a[j-1]>a[j])
            {
                t=a[j-1];
                a[j-1]=a[j];
                a[j]=t;
            }
        }
    }
}

void quciksort(int abitur[], int n)
{
    int imin, i, j, t;
    for (i=1; i<n; i++)
    {
        int imin=i;
        for (j=i+1; j<n; j++)
        {
            if(a[imin]>a[j])
            {
                imin=j;
            }
            if(imin != i)
            {
                t=a[imin];
                a[imin]=a[i];
                a[i]=t;
            }
        }
    }

}