




import sys
from collections import defaultdict







class     __lowerCAmelCase :

			"""simple docstring"""







			def __init__(      self							)    ->      Tuple:



							'''simple docstring'''
							__lowerCamelCase		       =    []


			def       lowercase_    (      self			,						lowerCamelCase__							)    ->      Dict:



							'''simple docstring'''
							return self.node_position[vertex]


			def       lowercase_    (      self			,						lowerCamelCase__			,						lowerCamelCase__							)    ->      Tuple:



							'''simple docstring'''
							__lowerCamelCase		       =    pos


			def       lowercase_    (      self			,						lowerCamelCase__			,						lowerCamelCase__			,						lowerCamelCase__			,						lowerCamelCase__							)    ->      List[str]:



							'''simple docstring'''
							if start > size // 2 - 1:
											return
							else:
											if 2 * start + 2 >= size:
															__lowerCamelCase		       =    2 * start + 1
											else:
															if heap[2 * start + 1] < heap[2 * start + 2]:
																			__lowerCamelCase		       =    2 * start + 1
															else:
																			__lowerCamelCase		       =    2 * start + 2
											if heap[smallest_child] < heap[start]:
															__lowerCamelCase       ,						__lowerCamelCase		       =    heap[smallest_child], positions[smallest_child]
															__lowerCamelCase       ,						__lowerCamelCase		       =    (
															    heap[start],
															    positions[start],
															)
															__lowerCamelCase       ,						__lowerCamelCase		       =    temp, tempa

															__lowerCamelCase		       =    self.get_position(positions[smallest_child]							)
															self.set_position(
															    positions[smallest_child]			,						self.get_position(positions[start]							)							)
															self.set_position(positions[start]			,						lowerCamelCase__							)

															self.top_to_bottom(lowerCamelCase__			,						lowerCamelCase__			,						lowerCamelCase__			,						lowerCamelCase__							)


			def       lowercase_    (      self			,						lowerCamelCase__			,						lowerCamelCase__			,						lowerCamelCase__			,						lowerCamelCase__							)    ->      Union[str, Any]:



							'''simple docstring'''
							__lowerCamelCase		       =    position[index]

							while index != 0:
											__lowerCamelCase		       =    int((index - 2) / 2							) if index % 2 == 0 else int((index - 1) / 2							)

											if val < heap[parent]:
															__lowerCamelCase		       =    heap[parent]
															__lowerCamelCase		       =    position[parent]
															self.set_position(position[parent]			,						lowerCamelCase__							)
											else:
															__lowerCamelCase		       =    val
															__lowerCamelCase		       =    temp
															self.set_position(lowerCamelCase__			,						lowerCamelCase__							)
															break
											__lowerCamelCase		       =    parent
							else:
											__lowerCamelCase		       =    val
											__lowerCamelCase		       =    temp
											self.set_position(lowerCamelCase__			,						0							)


			def       lowercase_    (      self			,						lowerCamelCase__			,						lowerCamelCase__							)    ->      List[Any]:



							'''simple docstring'''
							__lowerCamelCase		       =    len(lowerCamelCase__							) // 2 - 1
							for i in range(lowerCamelCase__			,						-1			,						-1							):
											self.top_to_bottom(lowerCamelCase__			,						lowerCamelCase__			,						len(lowerCamelCase__							)			,						lowerCamelCase__							)






			def       lowercase_    (      self			,						lowerCamelCase__			,						lowerCamelCase__							)    ->      Any:



							'''simple docstring'''
							__lowerCamelCase		       =    positions[0]
							__lowerCamelCase		       =    sys.maxsize
							self.top_to_bottom(lowerCamelCase__			,						0			,						len(lowerCamelCase__							)			,						lowerCamelCase__							)
							return temp







def 			lowerCamelCase_		(       UpperCamelCase__				:      str      )     ->       List[str]:





				"""simple docstring"""


				__lowerCamelCase		       =    Heap()

				__lowerCamelCase		       =    [0] * len(UpperCamelCase__      )
				__lowerCamelCase		       =    [-1] * len(UpperCamelCase__      )  # Neighboring Tree Vertex of selected vertex
				# Minimum Distance of explored vertex with neighboring vertex of partial tree
				# formed in graph
				__lowerCamelCase		       =    []  # Heap of Distance of vertices from their neighboring vertex
				__lowerCamelCase		       =    []

				for vertex in range(len(UpperCamelCase__      )      ):
								distance_tv.append(sys.maxsize      )
								positions.append(UpperCamelCase__      )
								heap.node_position.append(UpperCamelCase__      )

				__lowerCamelCase		       =    []
				__lowerCamelCase		       =    1
				__lowerCamelCase		       =    sys.maxsize
				for neighbor, distance in adjacency_list[0]:
								__lowerCamelCase		       =    0
								__lowerCamelCase		       =    distance
				heap.heapify(UpperCamelCase__ ,     UpperCamelCase__      )

				for _ in range(1 ,     len(UpperCamelCase__      )      ):
								__lowerCamelCase		       =    heap.delete_minimum(UpperCamelCase__ ,     UpperCamelCase__      )
								if visited[vertex] == 0:
												tree_edges.append((nbr_tv[vertex], vertex)      )
												__lowerCamelCase		       =    1
												for neighbor, distance in adjacency_list[vertex]:
																if (
																    visited[neighbor] == 0
																    and distance < distance_tv[heap.get_position(UpperCamelCase__      )]
																):
																				__lowerCamelCase		       =    distance
																				heap.bottom_to_top(
																				    UpperCamelCase__ ,     heap.get_position(UpperCamelCase__      ) ,     UpperCamelCase__ ,     UpperCamelCase__      )
																				__lowerCamelCase		       =    vertex
				return tree_edges


if __name__ == "__main__":  # pragma: no cover
					# < --------- Prims Algorithm --------- >
					__A        =    int(input("Enter number of edges: ").strip())
					__A        =    defaultdict(list)
					for _ in range(edges_number):
										__A        =    [int(x) for x in input().strip().split()]
										adjacency_list[edge[0]].append([edge[1], edge[2]])
										adjacency_list[edge[1]].append([edge[0], edge[2]])
					print(prisms_algorithm(adjacency_list))








import argparse
import shutil
from pathlib import Path

from tqdm import tqdm

from transformers import AutoTokenizer







def 			lowerCamelCase_		(       UpperCamelCase__				:      List[Any] ,     UpperCamelCase__				:      Optional[int] ,     UpperCamelCase__				:      str ,     UpperCamelCase__				:      Any=1024      )     ->       Dict:





				"""simple docstring"""


				__lowerCamelCase       ,						__lowerCamelCase		       =    [], []

				__lowerCamelCase		       =    list(zip(UpperCamelCase__ ,     UpperCamelCase__      )      )
				__lowerCamelCase       ,						__lowerCamelCase		       =    sorted_examples[0]

				def is_too_big(UpperCamelCase__				:      List[str]      ):
								return tok(UpperCamelCase__ ,     return_tensors='pt'      ).input_ids.shape[1] > max_tokens

				for src, tgt in tqdm(sorted_examples[1:]      ):
								__lowerCamelCase		       =    new_src + ' ' + src
								__lowerCamelCase		       =    new_tgt + ' ' + tgt
								if is_too_big(UpperCamelCase__      ) or is_too_big(UpperCamelCase__      ):  # cant fit, finalize example
												finished_src.append(UpperCamelCase__      )
												finished_tgt.append(UpperCamelCase__      )
												__lowerCamelCase       ,						__lowerCamelCase		       =    src, tgt
								else:  # can fit, keep adding
												__lowerCamelCase       ,						__lowerCamelCase		       =    cand_src, cand_tgt

    # cleanup
				if new_src:
								assert new_tgt
								finished_src.append(UpperCamelCase__      )
								finished_tgt.append(UpperCamelCase__      )
				return finished_src, finished_tgt







def 			lowerCamelCase_		(       UpperCamelCase__				:      str ,     UpperCamelCase__				:      Path ,     UpperCamelCase__				:      Optional[int] ,     UpperCamelCase__				:      str      )     ->       Optional[int]:





				"""simple docstring"""


				__lowerCamelCase		       =    Path(UpperCamelCase__      )
				save_path.mkdir(exist_ok=UpperCamelCase__      )
				for split in ["train"]:
								__lowerCamelCase       ,						__lowerCamelCase		       =    data_dir / F"""{split}.source""", data_dir / F"""{split}.target"""
								__lowerCamelCase		       =    [x.rstrip() for x in Path(UpperCamelCase__      ).open().readlines()]
								__lowerCamelCase		       =    [x.rstrip() for x in Path(UpperCamelCase__      ).open().readlines()]
								__lowerCamelCase       ,						__lowerCamelCase		       =    pack_examples(UpperCamelCase__ ,     UpperCamelCase__ ,     UpperCamelCase__ ,     UpperCamelCase__      )
								print(F"""packed {split} split from {len(UpperCamelCase__      )} examples -> {len(UpperCamelCase__      )}."""      )
								Path(save_path / F"""{split}.source"""      ).open('w'      ).write('\n'.join(UpperCamelCase__      )      )
								Path(save_path / F"""{split}.target"""      ).open('w'      ).write('\n'.join(UpperCamelCase__      )      )
				for split in ["val", "test"]:
								__lowerCamelCase       ,						__lowerCamelCase		       =    data_dir / F"""{split}.source""", data_dir / F"""{split}.target"""
								shutil.copyfile(UpperCamelCase__ ,     save_path / F"""{split}.source"""      )
								shutil.copyfile(UpperCamelCase__ ,     save_path / F"""{split}.target"""      )







def 			lowerCamelCase_		(       )     ->       List[str]:





				"""simple docstring"""


				__lowerCamelCase		       =    argparse.ArgumentParser()
				parser.add_argument('--tok_name' ,     type=UpperCamelCase__ ,     help='like facebook/bart-large-cnn,t5-base, etc.'      )
				parser.add_argument('--max_seq_len' ,     type=UpperCamelCase__ ,     default=128      )
				parser.add_argument('--data_dir' ,     type=UpperCamelCase__      )
				parser.add_argument('--save_path' ,     type=UpperCamelCase__      )
				__lowerCamelCase		       =    parser.parse_args()
				__lowerCamelCase		       =    AutoTokenizer.from_pretrained(args.tok_name      )
				return pack_data_dir(UpperCamelCase__ ,     Path(args.data_dir      ) ,     args.max_seq_len ,     args.save_path      )


if __name__ == "__main__":
					packer_cli()


