Added SEQ definition

AlphaSquad · AlphaSquad · commit 4e74744bedb0 · 2020-10-19T15:01:42.000+02:00
diff --git a/Sequence.h b/Sequence.h
@@ -1,3 +1,6 @@
+#ifndef SEQ
+#define SEQ
+
 #include <string>
 #include <algorithm>
 #include "nthash.hpp"
@@ -31,3 +34,5 @@ namespace std
 		}
 	};
 }
+
+#endif
