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

#define STACK_SIZE 10

struct stack {
   float values[STACK_SIZE];
   int size;
};

void push_stack(float value, struck stack *s){
   if (s->size >=STACK_SIZE){
      printf("Zapsinik je plny\n")
      exit (1);
}
s->values[s->size] = value;
s->size++;
}

float pop_stack(struct stack *s) {
   if (s->size <= 0){
      printf("zasobnik je prazdny \n");
      exit(1);
   }
   s->size--;
   return s->values[s->size];
}