diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8a9d35c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
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diff --git a/analysis/04-reverse-linked-list/exapmle/reverse-linked-list/reverse-linked-list.pro.user b/analysis/04-reverse-linked-list/exapmle/reverse-linked-list/reverse-linked-list.pro.user
new file mode 100644
index 0000000..b85c068
--- /dev/null
+++ b/analysis/04-reverse-linked-list/exapmle/reverse-linked-list/reverse-linked-list.pro.user
@@ -0,0 +1,282 @@
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