


import random




def    a__    (		snake_case__					:							int						,   snake_case__					:							float						,   snake_case__					:							bool = False     ):
  _UpperCAmelCase		:							dict							=     {i: [] for i in range(snake_case__     )}

  # if probability is greater or equal than 1, then generate a complete graph
  if probability >= 1:
    return complete_graph(snake_case__     )
  # if probability is lower or equal than 0, then return a graph without edges
  if probability <= 0:
    return graph

  # for each couple of nodes, add an edge from u to v
  # if the number randomly generated is greater than probability probability
  for i in range(snake_case__     ):
    for j in range(i + 1						,   snake_case__     ):
      if random.random() < probability:
        graph[i].append(snake_case__     )
        if not directed:
          # if the graph is undirected, add an edge in from j to i, either
          graph[j].append(snake_case__     )
  return graph




def    a__    (		snake_case__					:							int     ):
  return {
      i: [j for j in range(snake_case__     ) if i != j] for i in range(snake_case__     )
  }


if __name__ == "__main__":
 import doctest

 doctest.testmod()









SCREAMING_SNAKE_CASE__					:     dict[str, float]       =     {
    "joule": 1.0,
    "kilojoule": 1_000,
    "megajoule": 1_000_000,
    "gigajoule": 1_000_000_000,
    "wattsecond": 1.0,
    "watthour": 3_600,
    "kilowatthour": 3_600_000,
    "newtonmeter": 1.0,
    "calorie_nutr": 4_186.8,
    "kilocalorie_nutr": 4_186_800.00,
    "electronvolt": 1.602176634e-19,
    "britishthermalunit_it": 1_055.05_585,
    "footpound": 1.355_818,
}




def    a__    (		snake_case__					:							str						,   snake_case__					:							str						,   snake_case__					:							float     ):
  if to_type not in ENERGY_CONVERSION or from_type not in ENERGY_CONVERSION:
    _UpperCAmelCase		:							Optional[Any]							=     (
        f'''Incorrect \'from_type\' or \'to_type\' value: {from_type!r}, {to_type!r}\n'''
        f'''Valid values are: {", ".join(snake_case__     )}'''
    )
    raise ValueError(snake_case__     )
  return value * ENERGY_CONVERSION[from_type] / ENERGY_CONVERSION[to_type]


if __name__ == "__main__":
 import doctest

 doctest.testmod()





