abandon sstream a cause error mtn atoi

.gitignore

@@ -1,8 +1,3 @@
-# These are some examples of commonly ignored file patterns.
-# You should customize this list as applicable to your project.
-# Learn more about .gitignore:
-#     https://www.atlassian.com/git/tutorials/saving-changes/gitignore
-
 # Node artifact files
 node_modules/
 dist/
@@ -48,3 +43,8 @@ Thumbs.db
 *.mov
 *.wmv
 
+# personnals
+.o
+builds/
+.swp
+.out