#ifndef CDYN
#define CDYN
#include <cstddef>
using namespace std;

#define DTYPE short

struct dynarray {
	DTYPE *data;
	size_t items;
	size_t space;
};

void init(struct dynarray *arr, size_t capacity);
void append(struct dynarray *arr, DTYPE new_item);
void free_dynarray(struct dynarray *arr);
#endif