diff --git a/coc-settings.json b/coc-settings.json
index 7a52e90..42bc8ef 100644
--- a/coc-settings.json
+++ b/coc-settings.json
@@ -3,5 +3,6 @@
   "explorer.icon.enableNerdfont": true,
   "explorer.toggle": true,
   "markdown-preview-enhanced.previewTheme":"github-dark.css",
-  "markdown-preview-enhanced.latexEngine": "pdflatex"
+  "markdown-preview-enhanced.latexEngine": "pdflatex",
+  "leetcode.language": "cpp"
 }
diff --git a/lua/Plugin/coc.lua b/lua/Plugin/coc.lua
index 0a04591..391cce6 100644
--- a/lua/Plugin/coc.lua
+++ b/lua/Plugin/coc.lua
@@ -1,11 +1,11 @@
 vim.g['coc_global_extensions'] = {
-  "coc-clangd",
   "coc-python",
   "coc-json",
   "coc-lua",
   "coc-markdown-preview-enhanced",
   "coc-webview",
 
+  "coc-leetcode",
   "coc-translator",
   "coc-yank",
   "coc-pairs",