コード例 #1
0
ファイル: fibonacci_v1.cpp プロジェクト: kandersen/dADS3
node* join_trees(node* n1, node* n2) {

  node* lowest_n;
  node* highest_n;

  if (LE(n1->key, n2->key)) {
    lowest_n = n1;
    highest_n = n2;
  } else {
    lowest_n = n2;
    highest_n = n1;
  }

  if (lowest_n->child == NULL) {
      lowest_n->child = highest_n;
      highest_n->parent = lowest_n;
  } else {
    concat_list(lowest_n->child, highest_n);
    node* temp_ref = highest_n;
    do {
      temp_ref->parent = lowest_n;
      temp_ref = temp_ref->right_sibling;
    } while (temp_ref != highest_n);
  }
  lowest_n->rank = lowest_n->rank + 1;
  highest_n->marked = 0;
  return lowest_n;
}
コード例 #2
0
ファイル: fibonacci_v1.cpp プロジェクト: kandersen/dADS3
void decrease_key (int delta, item* i, heap* h) {

  node* n = i->n;
  
  i->key = i->key - delta;
  n->key = i->key;
  
  if (n->parent != NULL) {

    // first clean up one level up
    if (n->right_sibling == n) { // only one in the list
      n->parent->child = NULL;
      n->parent->rank = 0;
    } else {
      n->parent->child = n->right_sibling; //make sure the parents child does not point to us
      n->parent->rank = n->parent->rank - 1;
      remove_node_in_list(n);
    }

    update_marked(n->parent, h);

    n->parent = NULL;

    // move the node up to the root
    concat_list(h->min_node, n);    
  }
      
  if (GT(h->min_node->key, n->key)) {
    h->min_node = n;
  }
}
コード例 #3
0
ファイル: linked_list2_c.c プロジェクト: kp54/pg3
int main (void)
{
	node* init=NULL;
	node* a[16];
	
	init=create_node("","");
	a[0]=create_node("aaa","あああ");
	a[1]=create_node("bbb","いいい");
	
	concat_list(a[0],init);
	concat_list(a[1],init);
	
	printf("%-16s\t%-8s\t%-8s\t%-16s\n", "アドレス","eng","jpn","next");
	print_list(init);
	
	close_list(init);

	return 0;
}
コード例 #4
0
ファイル: linked_list2_c.c プロジェクト: kp54/pg3
void concat_list(node* p, node* list)
{
	if(list->next){
		concat_list(p,list->next);
	}else{
		list->next=p;
		p->next=NULL;
	}
	
	return;
}
コード例 #5
0
ファイル: fibonacci_v1.cpp プロジェクト: kandersen/dADS3
void update_marked(node* n, heap* h) {
  if (n->parent == NULL) {
    return;
  } else {
    if (n->marked == 1) {
      update_marked(n->parent, h);
      if (n->right_sibling == n) {
        n->parent->child = NULL;
      } else {
        n->parent->child = n->right_sibling;
      }
      n->parent = NULL;
      remove_node_in_list(n);
      concat_list(h->min_node, n);       
    } else {
      n->marked = 1;
    }
  }
}
コード例 #6
0
ファイル: fibonacci_v1.cpp プロジェクト: kandersen/dADS3
heap* meld (heap* h1, heap* h2) {

  if (h1->min_node == NULL) { *h1 = *h2; return h1; }
  if (h2->min_node == NULL) {return h1; }

  node* h1_min_node = h1->min_node;
  node* h2_min_node = h2->min_node;

  concat_list(h1_min_node, h2_min_node);

  if (GT(h1_min_node->key, h2_min_node->key)) {
    h1->min_node = h2->min_node;
  }

  h1->rank = h1->rank + h2->rank;
  
  free(h2);

  return h1;
}
コード例 #7
0
ファイル: main.c プロジェクト: cret/Algotirhms_in_c
int main(void)
{
    link *head, *odd = NULL, *even = NULL;
    head = new_list();

    print_list(head);

    while (head != NULL)
    {
        odd = add_next(head->item,odd);
        head = head ->next;
        even = add_next(head->item, even);
        head = head->next;
    }

    head =concat_list(odd, even);
    print_list(head);

    return 0;
}
コード例 #8
0
ファイル: fibonacci_v1.cpp プロジェクト: kandersen/dADS3
void remove_item(item* i, heap* h) {
  
  node* n = i->n;

  if (h->min_node == n) {
    delete_min(h);
  } else {

    if (n->parent != NULL) {

      update_marked(n->parent, h);

      if (n->right_sibling == n) {
        n->parent->child = NULL;
      } else {
        n->parent->child = n->right_sibling;
      }

      n->parent->rank = n->parent->rank - 1;
    } 

    remove_node_in_list(n);

    if (n->child != NULL) {
      // move the node up to the root
      concat_list(h->min_node, n->child);    

      // should this be a constant operation?
      node* last_ref = n->child;
      do {
        last_ref->parent = NULL;
        last_ref = last_ref->right_sibling;
      } while (last_ref != n->child);     
    }
  } 
}
コード例 #9
0
ファイル: component_c.c プロジェクト: kamalesh-babulal/libvpd
/**
 * Code adapted from component.cpp, dataitems are unpacked in the same
 * order as the Component::unpack( void* ) method to maintain consistency.
 */
struct component * unpack_component( void *buffer )
{
	struct component *ret = NULL;
	u32 size = 0, netOrder;
	char *packed = (char*)buffer;
	char * next;
	struct list *item;
	struct dataitem *data;

	if( !buffer )
		return ret;

	ret = new_component( 0 );
	if( !ret )
		return ret;

	memcpy( &netOrder, packed, sizeof( u32 ) );
	size = ntohl( netOrder );
	next = packed + sizeof( u32 );

	ret->id = unpack_dataitem( next );
	if( !ret->id )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->id );

	ret->deviceTreeNode = unpack_dataitem( next );
	if( !ret->deviceTreeNode )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->deviceTreeNode );

	ret->sysFsNode = unpack_dataitem( next );
	if( !ret->sysFsNode )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->sysFsNode );

	ret->sysFsLinkTarget = unpack_dataitem( next );
	if( !ret->sysFsLinkTarget )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->sysFsLinkTarget );

	ret->halUDI = unpack_dataitem( next );
	if( !ret->halUDI )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->halUDI );

	ret->netAddr = unpack_dataitem( next );
	if( !ret->netAddr )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->netAddr );

	ret->devClass = unpack_dataitem( next );
	if( !ret->devClass )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devClass );

	ret->description = unpack_dataitem( next );
	if( !ret->description )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->description );

	ret->cdField = unpack_dataitem( next );
	if( !ret->cdField )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->cdField );

	ret->serialNumber = unpack_dataitem( next );
	if( !ret->serialNumber )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->serialNumber );

	ret->partNumber = unpack_dataitem( next );
	if( !ret->partNumber )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->partNumber );

	ret->firmwareLevel = unpack_dataitem( next );
	if( !ret->firmwareLevel )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->firmwareLevel );

	ret->firmwareVersion = unpack_dataitem( next );
	if( !ret->firmwareVersion )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->firmwareVersion );

	ret->fru = unpack_dataitem( next );
	if( !ret->fru )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->fru );

	ret->manufacturer = unpack_dataitem( next );
	if( !ret->manufacturer )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->manufacturer );

	ret->model = unpack_dataitem( next );
	if( !ret->model )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->model );

	ret->manufacturerID = unpack_dataitem( next );
	if( !ret->manufacturerID )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->manufacturerID );

	ret->engChangeLevel = unpack_dataitem( next );
	if( !ret->engChangeLevel )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->engChangeLevel );

	ret->parent = unpack_dataitem( next );
	if( !ret->parent )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->parent );

	ret->devSubSystem = unpack_dataitem( next );
	if( !ret->devSubSystem )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devSubSystem );

	ret->devDriver = unpack_dataitem( next );
	if( !ret->devDriver )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devDriver );

	ret->devKernel = unpack_dataitem( next );
	if( !ret->devKernel )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devKernel );

	ret->devKernelNumber = unpack_dataitem( next );
	if( !ret->devKernelNumber )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devKernelNumber );

	ret->devSysName = unpack_dataitem( next );
	if( !ret->devSysName )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devSysName );

	ret->devDevTreeName = unpack_dataitem( next );
	if( !ret->devDevTreeName )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devDevTreeName );

	ret->devBus = unpack_dataitem( next );
	if( !ret->devBus )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devBus );

	ret->devBusAddr = unpack_dataitem( next );
	if( !ret->devBusAddr )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->devBusAddr );

	ret->recordType = unpack_dataitem( next );
	if( !ret->recordType )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->recordType );

	ret->scsiDetail = unpack_dataitem( next );
	if( !ret->scsiDetail )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->scsiDetail );

	ret->plantMfg = unpack_dataitem( next );
	if( !ret->plantMfg )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->plantMfg );

	ret->featureCode = unpack_dataitem( next );
	if( !ret->featureCode )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->featureCode );

	ret->keywordVersion = unpack_dataitem( next );
	if( !ret->keywordVersion )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->keywordVersion );

	ret->microCodeImage = unpack_dataitem( next );
	if( !ret->microCodeImage )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->microCodeImage );

	ret->secondLocation = unpack_dataitem( next );
	if( !ret->secondLocation )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->secondLocation );

	ret->physicalLocation = unpack_dataitem( next );
	if( !ret->physicalLocation )
		goto unpackerr;
	next += calc_packed_length_dataitem( ret->physicalLocation );

	while( 0 == strncmp( next, CHILD_START, strlen( CHILD_START ) ) )
	{
		next++;
		if( next > packed + size )
			goto unpackerr;
	}

	if( strncmp( next, CHILD_START, strlen( CHILD_START ) ) == 0 )
	{
		next += strlen( CHILD_START ) + 1;
		if( next > packed + size )
			goto unpackerr;

		while( strncmp( next, CHILD_END, strlen( CHILD_END ) ) != 0 )
		{
			item = new_list( );
			if( !next )
				goto unpackerr;
			item->data = strdup( next );
			if (item->data == NULL)
				goto unpackerr;
			next += strlen( (char*)item->data ) + 1;
			if( !ret->childrenIDs )
				ret->childrenIDs = item;
			else
				concat_list( ret->childrenIDs, item );

			if( next > packed + size )
				goto unpackerr;
		}

		next += strlen( CHILD_END ) + 1;
	}

	if( strncmp( next, DEVICE_START, strlen( DEVICE_START ) ) == 0 )
	{
		next += strlen( DEVICE_START ) + 1;
		if( next > packed + size )
			goto unpackerr;

		while( strncmp( next, DEVICE_END, strlen( DEVICE_END ) ) != 0 )
		{
			data = unpack_dataitem( next );
			if( !data )
				goto unpackerr;

			next += calc_packed_length_dataitem( data );
			if( !ret->deviceSpecific )
				ret->deviceSpecific = data;
			else
				add_dataitem( ret->deviceSpecific, data );

			if( next > packed + size )
				goto unpackerr;
		}

		next += strlen( DEVICE_END ) + 1;
	}

	if( strncmp( next, USER_START, strlen( USER_START ) ) == 0 )
	{
		next += strlen( USER_START ) + 1;
		if( next > packed + size )
			goto unpackerr;

		while( strncmp( next, USER_END, strlen( USER_END ) ) != 0 )
		{
			data = unpack_dataitem( next );
			if( !data )
				goto unpackerr;

			next += calc_packed_length_dataitem( data );
			if( !ret->userData )
				ret->userData = data;
			else
				add_dataitem( ret->userData, data );

			if( next > packed + size )
				goto unpackerr;
		}

		next += strlen( USER_END ) + 1;
	}

	if( strncmp( next, AX_START, strlen( AX_START ) ) == 0 )
	{
		next += strlen( AX_START ) + 1;
		if( next > packed + size )
			goto unpackerr;

		while( strncmp( next, AX_END, strlen( AX_END ) ) != 0 )
		{
			data = unpack_dataitem( next );
			if( !data )
				goto unpackerr;

			next += calc_packed_length_dataitem( data );
			if( !ret->aixNames )
				ret->aixNames = data;
			else
				add_dataitem( ret->aixNames, data );

			if( next > packed + size )
				goto unpackerr;
		}
	}

	return ret;

unpackerr:
	free_component( ret );
	return NULL;
}
コード例 #10
0
ファイル: file.c プロジェクト: Distrotech/minicom
/*
 * Draw the file directory.
 *
 *      howmany - How many files can be selected
 *		      0 = none (for directory selection only, as in "rz")
 *		      1 = one  (for single-file up-/down-loads, as in "rx")
 *		     -1 = any number (for multiple files, as in "sz")
 *
 *    downloading - Is this for download selection?
 *		      0 = no
 *		      1 = yes - when single file selected, see if it exists
 */
char * filedir(int howmany, int downloading)
{
  time_t click_time = (time_t) 0;
  size_t i;

  how_many = howmany;
  down_loading = downloading;
  init_filedir();

again:
  mc_wlocate(main_w, 0, cur + FILE_MWTR - top);
  if (first) {
    mc_wredraw(main_w, 1);
    first = 0;
  }
  while (!quit) {
    GETSDIR_ENTRY *d = getno(cur, global_dirdat);
    /*
       if(S_ISDIR(d->mode))
       prone(main_w, d, longest, 0);	
       */
    switch (c = wxgetch()) {
      case K_UP:
      case 'k':
        /*
         if(S_ISDIR(d->mode))
         prone(main_w, d, longest, 1);	
         */
        cur -= cur > 0;
        break;
      case K_DN:
      case 'j':
        /*
         if(S_ISDIR(d->mode))
         prone(main_w, d, longest, 1);
         */
        cur += cur < nrents - 1;
        break;
      case K_LT:
      case 'h':
        subm--;
        if (subm < 0)
          subm = SUBM_OKAY;
        break;
      case K_RT:
      case 'l':
        subm = (subm + 1) % 6;
        break;
      case K_PGUP:
      case '\002': /* Control-B */
        pgud = 1;
        quit = 1;
        break;
      case K_PGDN:
      case '\006': /* Control-F */
        pgud = 2;
        quit = 1;
        break;
      case ' ':    /* Tag if not directory */
        if (S_ISDIR(d->mode)) {
          time_t this_time = time((time_t *)NULL);
          if (this_time - click_time < 2) {
            GETSDIR_ENTRY *d2 = getno(cur, global_dirdat);
            goto_filedir(d2->fname, 0);
            click_time = (time_t)0;
          } else
            click_time = this_time;
        }
        else {
          if (how_many) {
            if ((d->cflags ^= FL_TAG) & FL_TAG) {
              if (tag_cnt && how_many == 1) {
                d->cflags &= ~FL_TAG;
                file_tell(_("Can select only one!"));
                break;
              }
              ++tag_cnt;
            } else
              --tag_cnt;
            mc_wlocate(main_w, 0, cur + FILE_MWTR - top);
            prone(main_w, d, longest, d->cflags & FL_TAG);
            mc_wputc(main_w, '\n');
            cur += cur < nrents - 1;
          }
        }
        break;

      case '\033':
      case '\r':
      case '\n':
        quit = 1;
        break;

      default:
	for (i = 0; i < WHAT_NR_OPTIONS; i++) {
	  if (strchr (_(what[i]), toupper (c)) != NULL) {
	    subm = i;
	    c = '\n';
	    quit = 1;
	    break;
	  }
	 }

        break;
    }

    if (c != ' ')
      click_time = (time_t)0;

    if (cur < top) {
      top--;
      prdir(main_w, top, top, global_dirdat, longest);
    }
    if (cur - top > main_w->ys - (2 + FILE_MWTR)) {
      top++;
      prdir(main_w, top, top, global_dirdat, longest);
    }
    /*
     if(cur != ocur)
     mc_wlocate(main_w, 0, cur + FILE_MWTR - top);
     */

    ocur = cur;
    dhili(subm);
    /* this really needs to go in dhili !!!*/
    mc_wlocate(main_w, 0, cur + FILE_MWTR - top);
  }

  quit = 0;
  /* ESC means quit */
  if (c == '\033') {
    mc_wclose(main_w, 1);
    mc_wclose(dsub, 1);
    free(global_dirdat);
    global_dirdat = NULL;
    return NULL;
  }
  /* Page up or down ? */
  if (pgud == 1) { /* Page up */
    ocur = top;
    top -= main_w->ys - (1 + FILE_MWTR);
    if (top < 0)
      top = 0;
    cur = top;
    pgud = 0;
    if (ocur != top)
      prdir(main_w, top, cur, global_dirdat, longest);
    ocur = cur;
    goto again;
  }
  if (pgud == 2) { /* Page down */
    ocur = top;
    if (top < nrents - main_w->ys + (1 + FILE_MWTR)) {
      top += main_w->ys - (1 + FILE_MWTR);
      if (top > nrents - main_w->ys + (1 + FILE_MWTR)) {
        top = nrents - main_w->ys + (1 + FILE_MWTR);
      }
      cur = top;
    } else
      cur = nrents - 1;
    pgud = 0;
    if (ocur != top)
      prdir(main_w, top, cur, global_dirdat, longest);
    ocur = cur;
    goto again;
  }

  if (c =='\r' || c == '\n') {
    switch(subm) {
      case 0:
        /* Goto directory */
        {
          char buf[128];
          char *s;
          strncpy(buf, down_loading? P_DOWNDIR : P_UPDIR, sizeof(buf) -1);
          s = input(_("Goto directory:"), buf);
          /* if(s == NULL || *s == (char) 0) */
          if (s == NULL)
            break;
          goto_filedir(buf, 1);
        }
        break;
      case 1:
        /* Previous directory */
        goto_filedir(prev_dir, 1);
        break;
      case 2:
        /* File (wildcard) spec */
        {
          char *s = input(_("Filename pattern:"), wc_mem);
          if (s == NULL || *s == (char) 0)
            break;
          strcpy(wc_str, wc_mem);
          new_filedir(global_dirdat, 1);
          wc_str[0] = (char)0;
        }
        break;
      case 3:
        /* Tag */
        if (how_many == 1)
          file_tell(_("Can select only one!"));
        else if (how_many == -1) {
          char tag_buf[128];
          char *s;
          strncpy(tag_buf, wc_mem, 128);

          s = input(_("Tag pattern:"), tag_buf);
          if (s != NULL && *s != (char)0) {
            int newly_tagged;
            if ((newly_tagged = tag_untag(tag_buf, 1)) == 0) {
              file_tell(_("No file(s) tagged"));
              goto tag_end;
            }
            tag_cnt += newly_tagged;
            prdir(main_w, top, top, global_dirdat, longest);  
          }
        }
tag_end:
        break;
      case 4:
        /* Untag */
        {
          char tag_buf[128];
          char *s;
          int untagged;
          strncpy(tag_buf, wc_mem, 128);

          s = input(_("Untag pattern:"), tag_buf);
          if (s == NULL || *s == (char)0)
            goto untag_end;
          if ((untagged = tag_untag(tag_buf, 0)) == 0) {
            file_tell(_("No file(s) untagged"));
            goto untag_end;
          }
          tag_cnt -= untagged;
          prdir(main_w, top, top, global_dirdat, longest);  
        }
untag_end:
        break;
      case 5:
        {
          /* Done */
          char *ret_ptr = NULL;	/* failsafe: assume failure */

          if (how_many != 0 && !tag_cnt) {

            while (1) {
              s = input(_("No file selected - enter filename:"),
                        ret_buf);
              if (s != NULL && *s != (char) 0) {
                int f_exist = access(ret_buf, F_OK);
                if (down_loading) {
                  if (f_exist != -1) {
                    /* ask 'em if they're *sure* */
                    char buf[BUFSIZ];

                    snprintf(buf, sizeof(buf), 
                             _("File: \"%s\" exists! Overwrite?"), ret_buf);
                    if (ask(buf, d_yesno) == 0) {
                      ret_ptr = ret_buf;
                      break;
                    }
                  } else {
                    ret_ptr = ret_buf;
                    break;
                  }
                } else {
                  if (f_exist == -1)
                    file_tell(_("no such file!"));
                  else {
                    ret_ptr = ret_buf;
                    break;
                  }
                }
              } else {
                /* maybe want to ask: "abort?", here */
                goto again;
              }
            }
          }
          else {
            /* put 'em in a buffer for return */
            if (how_many == 0) {
              /* current working directory */
              ret_ptr = work_dir;
            } else {
              ret_ptr = concat_list(global_dirdat);
            }
          }

          mc_wclose(main_w, 1);
          mc_wclose(dsub, 1);
          free(global_dirdat);
	  global_dirdat = NULL;
          return ret_ptr;
        }
        break;
      default:
        /* should "beep", I guess (? shouldn't get here) */
        file_tell("BEEP!");
        break;
    } /* switch */
  }

  goto again;
}
コード例 #11
0
ファイル: fibonacci_v1.cpp プロジェクト: kandersen/dADS3
item* delete_min(heap* h) {
  node* min_node = h->min_node;
  node* list_to_concat = NULL;

  if (min_node != NULL) {
    
    if (min_node->left_sibling == min_node) { // only one root
      h->min_node = NULL;
      list_to_concat = min_node->child;
    } else { 
      // save an arbitrary reference to the new list
      list_to_concat = min_node->left_sibling;

      // remove min root from forest
      remove_node_in_list(min_node);      
      
      if (min_node->child != NULL) {
        // If we have to append childs from the min root
        concat_list(list_to_concat, min_node->child);
      }
    }
  } 

  h->rank = h->rank - 1;
  
  if (list_to_concat != NULL) {
    
    int mr = max_rank(h);
    node* ranks[mr]; //calloc?
    for (int i = 0; i < mr; i++) {
      ranks[i] = NULL;
    }
    
    node* last_ref = list_to_concat; //which is actually just a pointer to an item
    do {

      node* next_ref = last_ref->right_sibling;
      
      last_ref->parent = NULL; // remember to set parent 0 - all is root nodes
      last_ref->left_sibling = last_ref;
      last_ref->right_sibling = last_ref;

      node* this_ref = last_ref;      

      node* existing_tree = ranks[this_ref->rank];

      // a while is necessary if we join trees
      while (existing_tree != NULL) {
        ranks[this_ref->rank] = NULL;
        this_ref = join_trees(existing_tree, this_ref);
        existing_tree = ranks[this_ref->rank];
      }
      ranks[this_ref->rank] = this_ref;
      last_ref = next_ref;
     
    } while (last_ref != list_to_concat); 

    // this way, we go through the circular list, until we reach the starting point
    node* new_min_node = NULL; // set an arbitrary one
    
    for (int i = 0; i < mr; i++) {
      node* curr_tree = ranks[i];
      if (new_min_node == NULL) {
        new_min_node = curr_tree;
      } else if (curr_tree != NULL) {
        concat_list(new_min_node, curr_tree);
        if (GT(new_min_node->key, curr_tree->key)) {
          new_min_node = curr_tree;
        }
      }
    }

    h->min_node = new_min_node;
  }

  if (min_node != NULL) {
    item* val = min_node->item;
    free(min_node);
    return val;
  } else {
    return NULL;
  }
}