How to compile C++ on Linux architecture 32 bits so that it works on Linux hosting 64 bits?

Question

C++ / C#

now I can't run files, writes:
cannot execute binary file: exec format error
so I need to somehow compile on 64 architecture. hosting is virtual, there is no way to install a compiler there.
and on your laptop to put 64 Linux too lazy. tell me if there are special compiler modes?

Answer 1

support told me that you can compile to the server if you log in with a docker virtual environment ..
that is, first connect just to the server via ssh and then re-login like this:
ssh [email protected] -p 222
indeed, so g++ began to work for me, I compiled the file there and he began to open up. the issue is partially resolved.
I want to know how to compile for 64 architecture

Answer 2

now I can't run files, writes:
cannot execute binary file: exec format error
He writes correctly...
We take man to the GCC compiler (there is a lot of it) and read about machine-dependent options (-m32, -m64, --target-help...)
Or here: gcc