



import heapq


def 		_UpperCAmelCase    (				snake_case     ,						snake_case     ,						snake_case      ):





					"""simple docstring"""

					_lowerCAmelCase      =   [(0, start)]  # cost from start node,end node
					_lowerCAmelCase      =   set()
					while heap:
										((_lowerCAmelCase)     ,     (_lowerCAmelCase))      =   heapq.heappop(snake_case      )
										if u in visited:
															continue
										visited.add(snake_case      )
										if u == end:
															return cost
										for v, c in graph[u]:
															if v in visited:
																				continue
															_lowerCAmelCase      =   cost + c
															heapq.heappush(snake_case     ,						(next_item, v)      )
					return -1


A__     				=	{
    """A""": [["""B""", 2], ["""C""", 5]],
    """B""": [["""A""", 2], ["""D""", 3], ["""E""", 1], ["""F""", 1]],
    """C""": [["""A""", 5], ["""F""", 3]],
    """D""": [["""B""", 3]],
    """E""": [["""B""", 4], ["""F""", 3]],
    """F""": [["""C""", 3], ["""E""", 3]],
}
A__     				=	{
    """B""": [["""C""", 1]],
    """C""": [["""D""", 1]],
    """D""": [["""F""", 1]],
    """E""": [["""B""", 1], ["""F""", 3]],
    """F""": [],
}
A__     				=	{
    """B""": [["""C""", 1]],
    """C""": [["""D""", 1]],
    """D""": [["""F""", 1]],
    """E""": [["""B""", 1], ["""G""", 2]],
    """F""": [],
    """G""": [["""F""", 1]],
}

A__     				=	dijkstra(G, """E""", """C""")
print(short_distance)  # E -- 3 --> F -- 3 --> C == 6

A__     				=	dijkstra(Ga, """E""", """F""")
print(short_distance)  # E -- 3 --> F == 3

A__     				=	dijkstra(Ga, """E""", """F""")
print(short_distance)  # E -- 2 --> G -- 1 --> F == 3

if __name__ == "__main__":
	import doctest

	doctest.testmod()








# Lint as: python3

import hashlib
from typing import Union


def 		_UpperCAmelCase    (				snake_case      ):





					"""simple docstring"""

					if isinstance(snake_case     ,						snake_case      ):
										# Data already in bytes, returns as it as
										return hash_data
					elif isinstance(snake_case     ,						snake_case      ):
										# We keep the data as it as for it ot be later encoded to UTF-8
										# However replace `\\` with `/` for Windows compatibility
										_lowerCAmelCase      =   hash_data.replace("""\\"""     ,						"""/"""      )
					elif isinstance(snake_case     ,						snake_case      ):
										_lowerCAmelCase      =   str(snake_case      )
					else:
										# If data is not of the required type, raise error
										raise InvalidKeyError(snake_case      )

					return hash_data.encode("""utf-8"""      )





class  __lowerCAmelCase			(					lowerCamelCase__	):




				def __init__(							self						,    _snake_case		):



									"""simple docstring"""





									_lowerCAmelCase      =   """\nFAILURE TO GENERATE DATASET: Invalid key type detected"""
									_lowerCAmelCase      =   F'\nFound Key {hash_data} of type {type(_snake_case		)}'
									_lowerCAmelCase      =   """\nKeys should be either str, int or bytes type"""
									super().__init__(F'{self.prefix}{self.err_msg}{self.suffix}'		)





class  __lowerCAmelCase			(					lowerCamelCase__	):




				def __init__(							self						,    _snake_case						,    _snake_case						,    _snake_case=""		):



									"""simple docstring"""





									_lowerCAmelCase      =   key
									_lowerCAmelCase      =   duplicate_key_indices
									_lowerCAmelCase      =   fix_msg
									_lowerCAmelCase      =   """Found multiple examples generated with the same key"""
									if len(_snake_case		) <= 20:
														_lowerCAmelCase      =   F'\nThe examples at index {", ".join(_snake_case		)} have the key {key}'
									else:
														_lowerCAmelCase      =   F'\nThe examples at index {", ".join(duplicate_key_indices[:20]		)}... ({len(_snake_case		) - 20} more) have the key {key}'
									_lowerCAmelCase      =   """\n""" + fix_msg if fix_msg else """"""
									super().__init__(F'{self.prefix}{self.err_msg}{self.suffix}'		)





class  __lowerCAmelCase			:




				def __init__(							self						,    _snake_case		):



									"""simple docstring"""





									_lowerCAmelCase      =   hashlib.mda(_as_bytes(_snake_case		)		)




				def 							snake_case       (							self						,    _snake_case		):



									"""simple docstring"""





									_lowerCAmelCase      =   self._split_mda.copy()
									_lowerCAmelCase      =   _as_bytes(_snake_case		)
									mda.update(_snake_case		)
									# Convert to integer with hexadecimal conversion
									return int(mda.hexdigest()						,    16		)



