diff --git a/coc-settings.json b/coc-settings.json
new file mode 100644
index 0000000..c1e478b
--- /dev/null
+++ b/coc-settings.json
@@ -0,0 +1,13 @@
+{
+  "languageserver": {
+    "cquery": {
+      "command": "cquery",
+      "args": ["--log-file=/tmp/cq.log"],
+      "filetypes": ["c", "cpp"],
+      "rootPatterns": ["compile_flags.txt", "compile_commands.json", ".vim/", ".git/", ".hg/"],
+      "initializationOptions": {
+        "cacheDirectory": "/tmp/cquery"
+      }
+    }
+  }
+}
diff --git a/init.vim b/init.vim
index 97603a0..79e8aaa 100644
--- a/init.vim
+++ b/init.vim
@@ -2,6 +2,8 @@ let hostname = substitute(system('hostname'), '\n', '', '')
 " =============Plugins==================
 call plug#begin()
 Plug 'morhetz/gruvbox'
+Plug 'Shougo/denite.nvim', { 'do': ':UpdateRemotePlugins' }
+Plug 'chemzqm/denite-git'
 Plug 'tomtom/tcomment_vim'
 Plug 'bling/vim-airline'
 Plug 'vim-airline/vim-airline-themes'
@@ -9,7 +11,7 @@ Plug 'vim-airline/vim-airline-themes'
 Plug 'neoclide/coc.nvim', {'do': { -> coc#util#install()}}
 Plug 'tpope/vim-fugitive'
 Plug 'airblade/vim-gitgutter'
-" Plug 'Shougo/neosnippet.vim'
+Plug 'SirVer/ultisnips'
 Plug 'honza/vim-snippets'
 Plug 'vim-scripts/a.vim'
 Plug 'luochen1990/rainbow'
@@ -143,13 +145,6 @@ end
 let g:deoplete#enable_at_startup = 1
 let g:deoplete#auto_complete_start_length = 1 
 let g:deoplete#enable_smart_case = 1
-" =========================neosnippet==================
-" " Enable snipMate compatibility feature.
-let g:neosnippet#enable_snipmate_compatibility = 1
-" Tell Neosnippet about the other snippets
-imap <expr><TAB> neosnippet#expandable_or_jumpable() ? "\<Plug>(neosnippet_expand_or_jump)" : pumvisible() ? "\<C-n>" : "\<TAB>" 
-smap <expr><TAB> neosnippet#expandable_or_jumpable() ? "\<Plug>(neosnippet_expand_or_jump)" : "\<TAB>"
-" conceal neosnippet markers
 " =====================A======================
 " Function for switching between header and c* files
 map <F5> :wa <CR> :A<CR>
@@ -162,6 +157,10 @@ let g:alternateSearchPath = 'sfr:../source,sfr:../src,sfr:../include,../../inclu
 " Dont create the file if the .cpp or .h is not found
 let g:alternateNoDefaultAlternate = 1
 
+" ===================UltiSnips================
+let g:UltiSnipsExpandTrigger = "<Plug>(ultisnips_expand)"
+let g:UltiSnipsJumpForwardTrigger = "<C-J>"
+let g:UltiSnipsJumpBackwardTrigger = "<C-K>"
 " ===========RAINBOW====================
 let g:rainbow_active = 1
 let g:rainbow_conf = { 
@@ -210,3 +209,27 @@ if has("win32")
     let g:chromatica#libclang_path='D:\Tools\LLVM\bin\libclang.dll'
   end
 end
+
+" ===================COC=============================
+inoremap <silent><expr> <c-space> coc#refresh()
+autocmd CursorHold * silent call CocActionAsync('highlight')
+" Remap for format selected region
+vmap <leader>f  <Plug>(coc-format-selected)
+nmap <leader>f  <Plug>(coc-format-selected)
+" Use `:Format` for format current buffer
+command! -nargs=0 Format :call CocAction('format')
+" Shortcuts for denite interface
+" Show extension list
+nnoremap <silent> <space>e  :<C-u>Denite coc-extension<cr>
+" Show symbols of current buffer
+nnoremap <silent> <space>o  :<C-u>Denite coc-symbols<cr>
+" Search symbols of current workspace
+nnoremap <silent> <space>t  :<C-u>Denite coc-workspace<cr>
+" Show diagnostics of current workspace
+nnoremap <silent> <space>a  :<C-u>Denite coc-diagnostic<cr>
+" Show available commands
+nnoremap <silent> <space>c  :<C-u>Denite coc-command<cr>
+" Show available services
+nnoremap <silent> <space>s  :<C-u>Denite coc-service<cr>
+" Show links of current buffer
+nnoremap <silent> <space>l  :<C-u>Denite coc-link<cr>