bappy sir header file

#include <stdio.h>
struct MyStruct
{
    char a[100];
    int size;
    int top;
}starck;
void init(int size)
{
    starck.top = -1;
    starck.size = size;
}
void push(int item)
{
    starck.top++;
    starck.a[starck.top] = item;
}
void pop()
{
    starck.a[starck.top] = -9999;
    starck.top--;
}
void print()
{
    int i;
    for(i = 0; i <= starck.top; i++)
        printf("%c ", starck.a[i]);
}