Fix HK::query for vertices in set S and tests

algorithm/henzinger_king.h

@@ -65,7 +65,8 @@ bool HenzingerKing<T>::query(const T& u, const T& v) {
 
   return std::any_of(S.begin(), S.end(),
                      [&](const T& w) {
-                       return In[w].contains(w, u) && Out[w].contains(w, v);
+                       return In[w].adjMatrix.contains(u) &&
+                         Out[w].adjMatrix.contains(v);
                      });
 }