



import hashlib
import importlib.util
import json
import os
import pathlib
from types import ModuleType

import pytest
import requests

_lowercase				:					Union[str, Any]     					=pathlib.Path.cwd().joinpath("""project_euler""")
_lowercase				:					Any     					=pathlib.Path.cwd().joinpath(
    """scripts""", """project_euler_answers.json"""
)

with open(PROJECT_EULER_ANSWERS_PATH) as file_handle:
	_lowercase				:					int     					=json.load(file_handle)




def    UpperCAmelCase					(  lowercase__						:					List[str]	):



			'''simple docstring'''





			a__					=  importlib.util.spec_from_file_location(file_path.name				,					str(lowercase__	)	)
			a__					=  importlib.util.module_from_spec(lowercase__	)  # type: ignore
			spec.loader.exec_module(lowercase__	)  # type: ignore
			return module




def    UpperCAmelCase					(  ):



			'''simple docstring'''





			a__					=  []
			for problem_dir_path in PROJECT_EULER_DIR_PATH.iterdir():
						if problem_dir_path.is_file() or problem_dir_path.name.startswith("""_"""	):
									continue
						for file_path in problem_dir_path.iterdir():
									if file_path.suffix != ".py" or file_path.name.startswith(("""_""", """test""")	):
												continue
									solution_file_paths.append(lowercase__	)
			return solution_file_paths




def    UpperCAmelCase					(  ):



			'''simple docstring'''





			with open(os.environ["""GITHUB_EVENT_PATH"""]	) as file:
						a__					=  json.load(lowercase__	)
			return event["pull_request"]["url"] + "/files"




def    UpperCAmelCase					(  ):



			'''simple docstring'''





			a__					=  []
			a__					=  {
			    """Accept""": """application/vnd.github.v3+json""",
			    """Authorization""": """token """ + os.environ["""GITHUB_TOKEN"""],
			}
			a__					=  requests.get(get_files_url()				,					headers=lowercase__	).json()
			for file in files:
						a__					=  pathlib.Path.cwd().joinpath(file["""filename"""]	)
						if (
						    filepath.suffix != ".py"
						    or filepath.name.startswith(("""_""", """test""")	)
						    or not filepath.name.startswith("""sol"""	)
						):
									continue
						solution_file_paths.append(lowercase__	)
			return solution_file_paths




def    UpperCAmelCase					(  ):



			'''simple docstring'''





			if os.environ.get("""CI"""	) and os.environ.get("""GITHUB_EVENT_NAME"""	) == "pull_request":
						# Return only if there are any, otherwise default to all solutions
						if filepaths := added_solution_file_path():
									return filepaths
			return all_solution_file_paths()





@pytest.mark.parametrize(
    """solution_path"""				,					collect_solution_file_paths()				,					ids=lambda lowercase__	: f'{path.parent.name}/{path.name}'				,					)
def    UpperCAmelCase					(  lowercase__						:					Optional[int]	):



			'''simple docstring'''





			a__					=  solution_path.parent.name[8:].zfill(3	)
			a__					=  PROBLEM_ANSWERS[problem_number]
			a__					=  convert_path_to_module(lowercase__	)
			a__					=  str(solution_module.solution()	)  # type: ignore
			a__					=  hashlib.shaaaa(answer.encode()	).hexdigest()
			assert (
			    answer == expected
			), f'Expected solution to {problem_number} to have hash {expected}, got {answer}'






from __future__ import annotations

from typing import Generic, TypeVar

UpperCamelCase__			=    TypeVar("T")
class       _lowerCAmelCase (			Generic[T]      ):






			"""simple docstring"""





			def __init__(					self						:							int      ,  lowercase						:							T )    ->       Union[str, Any]:
									"""simple docstring"""







									__lowercase											=					data  # Assign data
									__lowercase											=					None  # Initialize next as null
									__lowercase											=					None  # Initialize prev as null





class       _lowerCAmelCase (			Generic[T]      ):






			"""simple docstring"""





			def __init__(					self						:							Any )    ->       None:
									"""simple docstring"""







									__lowercase											=					None





			def 		snake_case__      (					self						:							str      ,  lowercase						:							T )    ->       None:
									"""simple docstring"""







									if self.head is None:
															__lowercase											=					Node(lowercase )
									else:
															__lowercase											=					Node(lowercase )
															__lowercase											=					new_node
															__lowercase											=					self.head
															__lowercase											=					None
															__lowercase											=					new_node





			def 		snake_case__      (					self						:							Optional[Any] )    ->       T | None:
									"""simple docstring"""







									if self.head is None:
															return None
									else:
															assert self.head is not None
															__lowercase											=					self.head.data
															__lowercase											=					self.head.next
															if self.head is not None:
																					__lowercase											=					None
															return temp





			def 		snake_case__      (					self						:							Optional[Any] )    ->       T | None:
									"""simple docstring"""







									return self.head.data if self.head is not None else None





			def __len__(					self						:							List[str] )    ->       int:
									"""simple docstring"""







									__lowercase											=					self.head
									__lowercase											=					0
									while temp is not None:
															count += 1
															__lowercase											=					temp.next
									return count





			def 		snake_case__      (					self						:							Optional[Any] )    ->       bool:
									"""simple docstring"""







									return self.head is None







			def 		snake_case__      (					self						:							Optional[Any] )    ->       None:
									"""simple docstring"""







									print("""stack elements are:""" )
									__lowercase											=					self.head
									while temp is not None:
															print(temp.data      ,  end="""->""" )
															__lowercase											=					temp.next


# Code execution starts here
if __name__ == "__main__":
			# Start with the empty stack
			UpperCamelCase__			=    Stack()

			# Insert 4 at the beginning. So stack becomes 4->None
			print("Stack operations using Doubly LinkedList")
			stack.push(4)

			# Insert 5 at the beginning. So stack becomes 4->5->None
			stack.push(5)

			# Insert 6 at the beginning. So stack becomes 4->5->6->None
			stack.push(6)

			# Insert 7 at the beginning. So stack becomes 4->5->6->7->None
			stack.push(7)

			# Print the stack
			stack.print_stack()

			# Print the top element
			print("\nTop element is ", stack.top())

			# Print the stack size
			print("Size of the stack is ", len(stack))

			# pop the top element
			stack.pop()

			# pop the top element
			stack.pop()

			# two elements have now been popped off
			stack.print_stack()

			# Print True if the stack is empty else False
			print("\nstack is empty:", stack.is_empty())





