[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

@@ -113,7 +113,6 @@ def max_flow(self, source: int, sink: int) -> int:
 
 
 if __name__ == "__main__":
-
     dn = Dinic(6)
     edges = [
         (0, 1, 16),