





# A Bipartite Graph is a graph whose vertices can be divided into two independent sets,
# U and V such that every edge (u, v) either connects a vertex from U to V or a vertex
# from V to U. In other words, for every edge (u, v), either u belongs to U and v to V,
# or u belongs to V and v to U. We can also say that there is no edge that connects
# vertices of same set.
from queue import Queue




def        lowerCAmelCase_       (							UpperCamelCase_     )   ->						int:
       UpperCamelCase_      				=     Queue()
       UpperCamelCase_      				=     [False] * len(UpperCamelCase_     )
       UpperCamelCase_      				=     [-1] * len(UpperCamelCase_     )

       def bfs():
              while not queue.empty():
                     UpperCamelCase_      				=     queue.get()
                     UpperCamelCase_      				=     True

                     for neighbour in graph[u]:
                            if neighbour == u:
                                   return False

                            if color[neighbour] == -1:
                                   UpperCamelCase_      				=     1 - color[u]
                                   queue.put(UpperCamelCase_     )

                            elif color[neighbour] == color[u]:
                                   return False

              return True

       for i in range(len(UpperCamelCase_     )     ):
              if not visited[i]:
                     queue.put(UpperCamelCase_     )
                     UpperCamelCase_      				=     0
                     if bfs() is False:
                            return False

       return True


if __name__ == "__main__":
     # Adjacency List of graph
     print(check_bipartite({0: [1, 3], 1: [0, 2], 2: [1, 3], 3: [0, 2]}))








import io
import json
import subprocess


_UpperCAmelCase				       = [
    ['en', 'ru'],
    ['ru', 'en'],
    ['en', 'de'],
    ['de', 'en'],
]

_UpperCAmelCase				       = 8




def        lowerCAmelCase_       (							UpperCamelCase_    ,						UpperCamelCase_     )   ->						Union[str, Any]:
       UpperCamelCase_      				=     {}
       for src, tgt in pairs:
              UpperCamelCase_      				=     F'''{src}-{tgt}'''
              UpperCamelCase_      				=     F'''sacrebleu -t wmt19 -l {pair} --echo src'''.split()
              UpperCamelCase_      				=     subprocess.run(UpperCamelCase_    ,						stdout=subprocess.PIPE     ).stdout.decode("utf-8"     ).splitlines()
              UpperCamelCase_      				=     F'''sacrebleu -t wmt19 -l {pair} --echo ref'''.split()
              UpperCamelCase_      				=     subprocess.run(UpperCamelCase_    ,						stdout=subprocess.PIPE     ).stdout.decode("utf-8"     ).splitlines()
              UpperCamelCase_      				=     {"src": src_lines[:n_objs], "tgt": tgt_lines[:n_objs]}
       return text


_UpperCAmelCase				       = get_all_data(pairs, n_objs)
_UpperCAmelCase				       = './fsmt_val_data.json'
with io.open(filename, 'w', encoding='utf-8') as f:
     _UpperCAmelCase				       = json.dump(text, f, indent=2, ensure_ascii=False)

