One installation way is :
sudo add-apt-repository ppa:damien-moore/codeblocks-stable
sudo apt update
sudo apt install codeblocks
But I think it is very old (2016 year?)
How to install newer, maybe not latest from nightly build but a bit newer.
I have Mint 20.
But this archive has many .deb files. I must use gdebi? For all files? Which order?
I use sudo dpkg -i *.deb but with many conflicts, I must remove some deb from folder and again. Next I have runtime error: libwx_gtk2u_aui-3.0.so.0 -> want version 2 but in deb are version 3 gtk and wx