GCC Compiler help


I have some problems and I am quite new to Terminals/ Command prompts. I am working on a project using C++, I was recommended to use Cygwin Terminal. So here is my issue. I am not sure if GCC is installed in Cygwin. I remember seeing it being installed on the startup installation window. I did some research to see how I can activate GCC in Cygwin. Apparently, I don’t know Bash but I kinda understand that its saying file doesn’t exist or it can’t find file location.