1 files changed, 7 insertions, 0 deletions
diff --git a/lua/5.lua b/lua/5.lua
new file mode 100755
index 0000000..eeeb25c
--- /dev/null
+++ b/lua/5.lua
@@ -0,0 +1,7 @@
+local tolerance = 10;
+function isturnback(angle)
+    angle = angle % 360;
+    return (math.abs(angle - 180) < tolerance)
+end
+
+print(isturnback(-180))