diff --git a/assignments/03/.gitignore b/assignments/03/.gitignore
index f9d4b09..978baca 100644
--- a/assignments/03/.gitignore
+++ b/assignments/03/.gitignore
@@ -6,4 +6,5 @@ report.pdf
 out.txt
 
 dataset/gen_*.txt
-.direnv
\ No newline at end of file
+.direnv
+labels.txt
\ No newline at end of file
diff --git a/assignments/03/lpa.cpp b/assignments/03/lpa.cpp
index e8bec7c..0b1198b 100644
--- a/assignments/03/lpa.cpp
+++ b/assignments/03/lpa.cpp
@@ -36,6 +36,15 @@ void pair_vector_init(struct pair_vector *);
 void pair_vector_clear(struct pair_vector *);
 void pair_vector_push(struct pair_vector *v, int fst, int snd);
 
+/**
+ * @brief Write a vector of labels to a file.
+ *
+ * @param filename The name of the file to write to.
+ * @param labels The array of labels.
+ * @param nlabels How many labels to write.
+ */
+static void print_labels(char *filename, int *labels, size_t const nlabels);
+
 int main(int argc, char **argv) {
   MPI::Init(argc, argv);
   int rank = MPI::COMM_WORLD.Get_rank(), p = MPI::COMM_WORLD.Get_size();
@@ -336,13 +345,10 @@ int main(int argc, char **argv) {
       } else {
         MPI::COMM_WORLD.Recv(&all_assignments[this_node_range.first], count,
                              MPI::INT, i, TAG_SEND_FINAL_RESULT);
-        // for (int j = 0; j < count; ++j) {
-        //   label_count[all_assignments[this_node_range.first + j]]++;
-        // }
       }
     }
 
-    // std::cout << "Done! " << label_count.size() << std::endl;
+    print_labels(argv[2], all_assignments.data(), all_assignments.size());
   } else {
     std::vector<int> flat_assignments;
     for (int i = my_node_range.first; i < my_node_range.second; ++i) {
@@ -393,4 +399,22 @@ void pair_vector_push(struct pair_vector *v, int fst, int snd) {
   v->ptr[v->len].fst = fst;
   v->ptr[v->len].snd = snd;
   v->len++;
+}
+
+static void print_labels(char *filename, int *labels, size_t const nlabels) {
+  size_t i;
+  FILE *fout;
+
+  /* open file */
+  if ((fout = fopen(filename, "w")) == NULL) {
+    fprintf(stderr, "error opening '%s'\n", filename);
+    abort();
+  }
+
+  /* write labels to fout */
+  for (i = 0; i < nlabels; ++i) {
+    fprintf(fout, "%u\n", labels[i]);
+  }
+
+  fclose(fout);
 }
\ No newline at end of file