diff --git a/src/os_threadpool.c b/src/os_threadpool.c
index aad0bb09c151c1310069edd8957270ac8586eccf..4ee1f7b2058c5b25ae80f43b32d3a543a8dad1de 100644
--- a/src/os_threadpool.c
+++ b/src/os_threadpool.c
@@ -39,10 +39,8 @@ void enqueue_task(os_threadpool_t *tp, os_task_t *t)
 	assert(t != NULL);
 
 	/* TODO: Enqueue task to the shared task queue. Use synchronization. */
-	//pthread_mutex_lock(&tp->mutexCoada);
 	list_add_tail(&tp->head, &t->list);
 	pthread_cond_broadcast(&tp->Wait);
-	//pthread_mutex_unlock(&tp->mutexCoada);
 }
 
 /*
diff --git a/src/parallel b/src/parallel
deleted file mode 100755
index 88cb07462b5b54ce0a6b4723fdd3bed9dcfbb750..0000000000000000000000000000000000000000
Binary files a/src/parallel and /dev/null differ
diff --git a/src/parallel.c b/src/parallel.c
index 78900ddc60b1edd49da296d327d8dd68da64104a..b2a2165c4adace40eef3df1c4aad74306cac9bef 100644
--- a/src/parallel.c
+++ b/src/parallel.c
@@ -41,7 +41,6 @@ static void process_node(unsigned int idx)
 	sum += graph->nodes[idx]->info;
 	graph->visited[idx] = DONE;
 	for (unsigned int i = 0; i < graph->nodes[idx]->num_neighbours; ++i) {
-
 		if (graph->visited[graph->nodes[idx]->neighbours[i]] == NOT_VISITED) {
 			graph->visited[graph->nodes[idx]->neighbours[i]] = PROCESSING;
 			os_arg_t *arg = malloc(sizeof(*arg));
diff --git a/src/serial b/src/serial
deleted file mode 100755
index e0865c76c5a667357f2a9b9c688ae2c5db9057e5..0000000000000000000000000000000000000000
Binary files a/src/serial and /dev/null differ