Class 1:
----
c
cpp
c-sharp
go
javascript
java
kotlin
python
typescript
----

Class 2:
----
cmake
cuda
julia
markdown
makefile
mathematica
php
powershell
ruby
rust
shell
sql
swift
vue
React
----

Class 3:
----
lean
haskell
protocol-buffer
racket
scheme
dart
erlang
common-lisp
ada
dockerfile
css
clojure
elm
ocaml
perl
glsl
emacs-lisp
zig
json
agda
thrift
pascal
elixir
r
yaml
lua
fortran
restructuredtext
html
vhdl
verilog
scala