#include <stdlib.h>
#include "stack-c.h"

void push(struct Stack* s, int i)
{
   s->elems[s->top++] = i;
}

int  pop(struct Stack* s)
{
  return s->elems[--(s->top)];
}

int  empty(struct Stack* s)
{
  return s->top == 0;
}

struct Stack* createStack(void)
{
   struct Stack* s = (struct Stack*)malloc(sizeof(struct Stack));
   s->top = 0;
   return s;
}