diff --git a/.backup/crontab-20210524-070100.gz b/.backup/crontab-20210524-070100.gz
new file mode 100644
index 0000000..d06c92c
Binary files /dev/null and b/.backup/crontab-20210524-070100.gz differ
diff --git a/.zsh_history b/.zsh_history
index 26f8b38..c5c5699 100644
--- a/.zsh_history
+++ b/.zsh_history
@@ -10766,3 +10766,6 @@ done
 : 1621692164:0;eproxy php artisan ins:like 65
 : 1621692603:0;ins
 : 1621692606:0;php artisan xiuren:s
+: 1621784699:0;hexo publish "Leetcode 236 δΊƒ¬εƒ―ƒ©ζƒ€ƒ±ηƒΊƒ€ζƒΌ€θΏƒ±εƒ₯¬εƒ₯±η₯ƒΆεƒ₯ƒ¨(Lowest Common Ancestor of a Binary Tree) 郂ƒΈθ§£εƒ¨ƒ¦ζƒΎƒ°"
+: 1621784759:0;hexo clean && hexo g && hexo s --debug
+: 1621784786:0;hexo d --debug