int main (int argc, const char *argv[]) {
int n, t, p, i, j;
int counters[3], extra[4];
int *tmp;
if (argc >= 2 && !strcmp (argv[1], "-e")) {
Root.extra_words = 1;
}
scanf ("%d", &n);
for (i = 0; i < n; i++) {
scanf ("%d", &t);
switch (t) {
case 1:
scanf ("%d", &p);
if (!tree23_lookup (&Root, p)) {
extra[0] = p+3;
tree23_insert (&Root, p, extra);
}
break;
case 2:
scanf ("%d", &p);
puts (tree23_lookup (&Root, p)?"YES":"NO");
break;
case 3:
scanf ("%d", &p);
tmp = sort (&Root, arr);
p = tmp - arr;
for (j = 0; j < p; j++)
printf ("%d%c", arr[j], '\n');
break;
case 4:
scanf ("%d", &p);
if (tree23_lookup (&Root, p))
tree23_delete (&Root, p);
break;
}
//dump (T);
if (check (&Root) < 0) printf ("BAD TREE\n");
}
printf ("%d\n", check (&Root));
dump (&Root);
tmp = sort (&Root, arr);
p = tmp - arr;
for (j = 0; j < p; j++)
printf ("%d%c", arr[j], '\n');
count (&Root, counters);
printf ("leaves allocated %d\nnodes allocated %d\nleaves freed %d\nnodes freed %d\nleaves current %d\nnodes current %d\n", lp, np, ld, nd, lp - ld, np - nd);
printf ("leaves in tree %d\nnodes in tree %d\nnumbers in tree %d\n", counters[1], counters[2], counters[0]);
return 0;
}
int main(void)
{
tree23_t *t;
test_item_t item_array[N_ITEMS], *i, *i2, duplicate, lookup_item;
test_item_t *result;
int j;
exit_flag = 0; /* For debugging. */
/* Create a 2-3 tree. */
t = tree23_alloc(item_cmp);
/* Add some items to it. */
printf("Inserting items:\n");
for(j = 0; j < N_ITEMS; j++) {
i = &item_array[j];
i->data1 = rand() % RND_MAX;
i->data2 = rand() % RND_MAX;
if((i2 = tree23_insert(t, i))) {
printf(" duplicate %d detected - trying again\n", i2->data1);
j--;
}
else {
/* printf(" %d", i->data1); */
printf("Inserted key %d:\n", i->data1);
tree23_dump_r(t->root, 0);
}
}
/* Test duplicate detection. */
printf("\nAttempting insert to give duplicate key...");
i2 = &item_array[N_ITEMS/2];
duplicate.data1 = i2->data1; duplicate.data2 = rand() % RND_MAX;
if(tree23_insert(t, &duplicate)) {
printf("duplicate detected.\n");
}
else {
printf("failed - duplicate undetected.\n");
exit(1);
}
/* Test tree23_find() */
printf("\nTesting tree23_find() to find an item...");
lookup_item.data1 = item_array[N_ITEMS/2].data1; /* key to lookup. */
result = tree23_find(t, &lookup_item);
if(result) {
printf("%s\n", result->data1 == lookup_item.data1
? "successful." : "failed.");
}
else {
printf("failed.\n");
}
/* Test tree23_find_min() */
printf("Testing tree23_find_min()...");
result = tree23_find_min(t);
if(result) printf("%d.\n", result->data1); else printf("failed.\n");
/* Test tree23_delete(). */
printf("\nTesting tree23_delete()...");
result = tree23_delete(t, &lookup_item);
if(result) {
printf("%s\n", result->data1 == lookup_item.data1
? "successful." : "failed.");
}
else {
printf("failed.\n");
}
/* Test tree23_delete_min() */
printf("Testing tree23_delete_min()...");
result = tree23_delete_min(t);
if(result) printf("%d.\n", result->data1); else printf("failed.\n");
/* Test tree23_free(). */
printf("Testing tree23_free()...");
tree23_free(t);
printf("successful.\n");
/* Create a new tree then repeat tree23_insert()/tree23_delete(). */
t = tree23_alloc(item_cmp);
printf("\nRepeating tree23_insert()/tree23_delete()...");
for(j = 0; j < N_ITEMS; j++) {
i = &item_array[j]; /* Uniqueness of keys was enforced earlier. */
printf("Inserting key %d:\n", i->data1);
tree23_insert(t, i);
tree23_dump_r(t->root, 0);
}
for(j = N_ITEMS/2; j < N_ITEMS; j++) {
i = &item_array[j];
printf("Deleting key %d:\n", i->data1);
if(!tree23_delete(t, i)) { printf("failed.\n"); exit(1); }
tree23_dump_r(t->root, 0);
}
for(j = N_ITEMS/2; j < N_ITEMS; j++) {
i = &item_array[j];
printf("Inserting key %d:\n", i->data1);
tree23_insert(t, i);
tree23_dump_r(t->root, 0);
}
for(j = 0; j < N_ITEMS/2; j++) {
i = &item_array[j];
printf("Deleting key %d:\n", i->data1);
if(!tree23_delete(t, i)) { printf("failed.\n"); exit(1); }
tree23_dump_r(t->root, 0);
}
for(j = N_ITEMS/2; j < N_ITEMS; j++) {
i = &item_array[j];
printf("Deleting key %d:\n", i->data1);
if(!tree23_delete(t, i)) { printf("failed.\n"); exit(1); }
if(t->root) tree23_dump_r(t->root, 0);
}
printf("successful.\n");
/* Test delete_min. */
for(j = 0; j < N_ITEMS; j++) {
i = &item_array[j]; /* Uniqueness of keys was enforced earlier. */
printf("Inserting key %d:\n", i->data1);
tree23_insert(t, i);
tree23_dump_r(t->root, 0);
}
for(j = 0; j < N_ITEMS; j++) {
if(!(i = tree23_delete_min(t))) { printf("failed.\n"); exit(1); }
printf("Deleted minimum key %d:\n", i->data1);
if(t->root) tree23_dump_r(t->root, 0);
}
tree23_free(t);
return 0;
}
void *_tree23_insert(void *t, void *item) {
return tree23_insert((tree23_t *)t, item);
}
