diff --git a/.gitignore b/.gitignore
index ac3f375..c2322ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,7 @@
 /*.iml
 /.idea/*.iml
 /out/production/offer/queue/*.class
+/out/production/offer/algorithm/sort/*.class
+/out/production/offer/ds/queue/*.class
+/out/production/offer/ds/linklist/*.class
+/out/production/offer/algorithm/bitoperation/*.class