#include <stdio.h>
#include <stdlib.h>
#include "set.h"

int main(void) {
    Set s = SetNew();

    // Insert elements
    SetInsert(s, 10);
    SetInsert(s, 20);
    SetInsert(s, 30);

    // Show set
    printf("Initial set: ");
    SetShow(s);

    // Check membership
    printf("Contains 20? %s\n",
           SetContains(s, 20) ? "true" : "false");

    printf("Contains 99? %s\n",
           SetContains(s, 99) ? "true" : "false");

    // Insert duplicate (should not create duplicates)
    SetInsert(s, 20);

    printf("After inserting duplicate 20: ");
    SetShow(s);

    // Delete an element
    SetDelete(s, 20);

    printf("After deleting 20: ");
    SetShow(s);

    // Size
    printf("Set size: %d\n", SetSize(s));

    // Clean up
    SetFree(s);

    return 0;
}