visitor.h:13:  private: should be indented +1 space inside class BfsVisitor  [whitespace/indent] [3]
visitor.h:15:  public: should be indented +1 space inside class Vert  [whitespace/indent] [3]
visitor.h:16:  Missing spaces around <  [whitespace/operators] [3]
visitor.h:22:  public: should be indented +1 space inside class BfsVisitor  [whitespace/indent] [3]
Done processing visitor.h
Total errors found: 4