[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

networking_flow/dinic.py

@@ -97,7 +97,7 @@ def dfs(self, u: int, sink: int, flow: int, ptr: list) -> int:
     def max_flow(self, source: int, sink: int) -> int:
         """
         Computes the maximum flow from source to sink.
-        
+
         >>> dinic = Dinic(6)
         >>> dinic.add_edge(0, 1, 16)
         >>> dinic.add_edge(0, 2, 13)