
import heapq


def       UpperCAmelCase_					(  __lowerCAmelCase		,   __lowerCAmelCase		,   __lowerCAmelCase		)	->  str:
    __lowercase						:     Dict		      =    [(0, start)]  # cost from start node,end node
    __lowercase						:     int		      =    set()
    while heap:
        (__lowercase)						:     Union[str, Any]		      =    heapq.heappop(__lowerCAmelCase		)
        if u in visited:
            continue
        visited.add(__lowerCAmelCase		)
        if u == end:
            return cost
        for v, c in graph[u]:
            if v in visited:
                continue
            __lowercase						:     Dict		      =    cost + c
            heapq.heappush(__lowerCAmelCase		,   (next_item, v)		)
    return -1


__lowerCAmelCase   :     List[Any]      =						{
    "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]],
}
__lowerCAmelCase   :     Dict      =						{
    "B": [["C", 1]],
    "C": [["D", 1]],
    "D": [["F", 1]],
    "E": [["B", 1], ["F", 3]],
    "F": [],
}
__lowerCAmelCase   :     Union[str, Any]      =						{
    "B": [["C", 1]],
    "C": [["D", 1]],
    "D": [["F", 1]],
    "E": [["B", 1], ["G", 2]],
    "F": [],
    "G": [["F", 1]],
}

__lowerCAmelCase   :     Union[str, Any]      =						dijkstra(G, "E", "C")
print(short_distance)  # E -- 3 --> F -- 3 --> C == 6

__lowerCAmelCase   :     Dict      =						dijkstra(Ga, "E", "F")
print(short_distance)  # E -- 3 --> F == 3

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

if __name__ == "__main__":
 import doctest

 doctest.testmod()




__lowerCAmelCase   :     List[Any]      =						"\n# Transformers installation\n! pip install transformers datasets\n# To install from source instead of the last release, comment the command above and uncomment the following one.\n# ! pip install git+https://github.com/huggingface/transformers.git\n"

__lowerCAmelCase   :     Optional[Any]      =						[{"type": "code", "content": INSTALL_CONTENT}]
__lowerCAmelCase   :     List[str]      =						{
    "{processor_class}": "FakeProcessorClass",
    "{model_class}": "FakeModelClass",
    "{object_class}": "FakeObjectClass",
}


