#include <stdio.h>

    #define MAXSIZE 10



    struct stack

    {

        int stk[MAXSIZE];

        int top;

    };

    typedef struct stack STACK;

    STACK s;



    void push(void);

    int  pop(void);

    void display(void);



    void main ()

    {

        int choice;

        int option = 1;

        s.top = -1;



        printf ("quiz1\n");

        while (option)

        {

            printf ("\n");

            printf ("      1    -->    PUSH               \n");

            printf ("      2    -->    POP               \n");

            printf ("      3    -->    DISPLAY               \n");

            printf ("      4    -->    EXIT           \n");

            printf ("\n");



            printf ("Tercihinizi girin\n");

            scanf    ("%d", &choice);

            switch (choice)

            {

            case 1:

                push();

                break;

            case 2:

                pop();

                break;

            case 3:

                display();

                break;

            case 4:

                return;

            }

            fflush (stdin);

            printf ("Devam etmek istiyor musunuz(Type 0 or 1)?\n");

            scanf    ("%d", &option);

        }

    }



    void push ()

    {

        int num;

        if (s.top == (MAXSIZE - 1))

        {

            printf ("Stack doldu\n");

            return;

        }

        else

        {

            printf ("PUSH giriniz\n");

            scanf ("%d", &num);

            s.top = s.top + 1;

            s.stk[s.top] = num;

        }

        return;

    }



    int pop ()

    {

        int num;

        if (s.top == - 1)

        {

            printf ("Stack bos\n");

            return (s.top);

        }

        else

        {

            num = s.stk[s.top];

            printf ("poplanan kisim = %dn", s.stk[s.top]);

            s.top = s.top - 1;

        }

        return(num);

    }



    void display ()

    {

        int i;

        if (s.top == -1)

        {

            printf ("Stack bos\n");

            return;

        }

        else

        {

            printf ("\n stack durumu \n");

            for (i = s.top; i >= 0; i--)

            {

                printf ("%d\n", s.stk[i]);

            }

        }

        printf ("\n");

    }