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

#define POW_2(num) (1<<(num))
#define VALID_J(j, s) ((POW_2(s-1)) >= j)

/* |-- node_set.h */
typedef struct node_set {
	int* nodes;
	ssize_t size;
	ssize_t offset;
} node_set;

static node_set*
set_new(ssize_t size);

static void
set_insert(node_set* nodes, int node);

static void
set_merge(node_set* dest, node_set* source);

static void
set_free(node_set* nodes);

node_set*
cis(int i, int s);