You only need MinGW in your system. If you do not have MinGW you can download it from there. Download according to your system specification.

• Once you download MinGW install it.
• Then go to this location(C:\MinGW\bin).
• Copy that path and paste it to your user/system environment variables where ever you want.
• If everything is fine, run the following command on your CMD and Terminal:

g++

These commands will show only a fatal error. If these commands do not show a fatal error or some other kind of error, so please make sure you have done all the above steps correctly.

• If you are done all the steps correctly, you will not face any difficulty at all.
• Then download the code and run it in your favorite editor.
• Open your code editor terminal, if your code editor has no terminal so open CMD and locate to that folder which has the files of C++ programs. Then run the following command:

g++ filename

• This command will compile your code and in your code folder, one file as a.exe was made.
• Then type 'a' in your terminal and hit the tab button. Your program runs successfully.

For more information, Please refer to the C++ docs.
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