filetype plugin indent on
" show existing tab with 4 spaces width
set tabstop=4
" when indenting with '>', use 4 spaces width
set shiftwidth=4"
On pressing tab, insert 4 spaces
set expandtab

https://raw.githubusercontent.com/Mogicians/Algorithm_Template/master/zkw%E8%B4%B9%E7%94%A8%E6%B5%81