ifndef STACK_H

define STACK_H

define stack_size 10

include”stdio.h”

struct ListNode {
int date[stack_size];
int top;
};
typedef struct ListNode node;
void init(node *s);
void pop(node *s,void *e);
void push(node *s, void *e);
int empty(node s);
int size(node s);

endif

include”stdio.h”

include”Stack.h”

include”stdlib.h”

include “string.h”

void init(node *s){
s->top = -1;
memset(s->date, 0, sizeof(s->date));
}

void pop(node *s, void *e){
if (s->top == -1){
return;
}
e = &s->date[s->top];
s->top–;
}

void push(node *s,void *e){
if (s->top == stack_size)
return;
s->top++;
e = &s->date[s->top];
}
int empty(node s){
if (s.top == -1)
return 1;
return 0;
}

int size(node s){
if (s.top == -1){
return 0;
}
return s.top + 1;
}

include”stdio.h”

include”Stack.h”

typedef struct Node{
int date;
int mouth;
}year;

int main(void){

year y[10];
node n;

 init(&n);
    for (int i = 0; i < 10; i++){
        y[i].date = i;
        y[i].mouth = i + 30;
        push(&n, (void*)&y[i]);
    }

}