Update check_bipatrite.py

Author: MaximSmolskiy

graphs/check_bipatrite.py

@@ -48,9 +48,7 @@ def is_bipartite_dfs(graph: defaultdict[int, list[int]]) -> bool:
     >>> is_bipartite_dfs({0: [1.0, 3.0], 1.0: [0, 2.0], 2.0: [1.0, 3.0], 3.0: [0, 2.0]})
     True
     >>> is_bipartite_dfs({"a": [1, 3], "b": [0, 2], "c": [1, 3], "d": [0, 2]})
-    Traceback (most recent call last):
-        ...
-    KeyError: 1
+    True
     >>> is_bipartite_dfs({0: ["b", "d"], 1: ["a", "c"], 2: ["b", "d"], 3: ["a", "c"]})
     Traceback (most recent call last):
         ...
@@ -132,9 +130,7 @@ def is_bipartite_bfs(graph: defaultdict[int, list[int]]) -> bool:
     >>> is_bipartite_bfs({0: [1.0, 3.0], 1.0: [0, 2.0], 2.0: [1.0, 3.0], 3.0: [0, 2.0]})
     True
     >>> is_bipartite_bfs({"a": [1, 3], "b": [0, 2], "c": [1, 3], "d": [0, 2]})
-    Traceback (most recent call last):
-        ...
-    KeyError: 1
+    True
     >>> is_bipartite_bfs({0: ["b", "d"], 1: ["a", "c"], 2: ["b", "d"], 3: ["a", "c"]})
     Traceback (most recent call last):
         ...