diff --git a/HW10/main.cpp b/HW10/main.cpp
index b6736f6..b143759 100644
--- a/HW10/main.cpp
+++ b/HW10/main.cpp
@@ -45,7 +45,7 @@ int main(int argc, char* argv[])
         }
     }
     MPI_Bcast(&flatMatrix[0], flatMatrix.size(), MPI_DOUBLE, 0, MPI_COMM_WORLD);
-    MPI_Bcast(&cities[0], cities.size(), MPI_DOUBLE, 0, MPI_COMM_WORLD);
+    MPI_Bcast(cities.data(), cities.size(), MPI_DOUBLE, 0, MPI_COMM_WORLD);
 
     std::vector<double> costs;
     if(rank){