fuck this I succeded fuck yo mama return return

prod_cons.c

@@ -207,7 +207,8 @@ void *task_f(){
 
   for (int k = 0; k < 6; k++){
     close_queue(&queue[k]);
-    for (int i = 0; i < 2; i++) sem_post(queue[k].libre);
+    sem_post(queue[k].libre);
+    sem_post(queue[k].used);
   }
 
 	printf("task F stopped!\n");