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-rw-r--r--src/2017/day11/aoc.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/2017/day11/aoc.h b/src/2017/day11/aoc.h
index 04c7b87..1270e1a 100644
--- a/src/2017/day11/aoc.h
+++ b/src/2017/day11/aoc.h
@@ -3,5 +3,8 @@
#include <vector>
namespace aoc2017 {
+
+enum class hd { n, ne, nw, se, sw, s };
+
std::pair<int64_t, int64_t> day11(line_view);
-}
+} // namespace aoc2017