1 files changed, 2 insertions, 0 deletions

diff --git a/problems.h b/problems.h
index d612f8a..a3306e2 100644
--- a/problems.h
+++ b/problems.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2020 Florian Fischer
 #pragma once
 
 #include "pso.h"