Optimize day 10

1 files changed, 7 insertions, 0 deletions

diff --git a/utils.h b/utils.h
new file mode 100644
index 0000000..db6b5de
--- /dev/null
+++ b/utils.h
@@ -0,0 +1,7 @@
+#ifndef AOC_UTILS_H
+#define AOC_UTILS_H
+
+#define likely(x)       __builtin_expect((x), 1)
+#define unlikely(x)     __builtin_expect((x), 0)
+
+#endif