As an (embedded at the moment, but I've been around) C and sometimes C++ developer, considering that tree to be "easy" just seems absurd.

I'm sure everybody knows this, but here's "hello world" on the command line using GCC in e.g. Linux:

    $ echo -e '#include <stdio.h>\nint main(void) { printf("hello, world!\\n"); return 0; }' > hello.c && gcc -o hello hello.c && ./hello

The most complicated thing here is probably the bash quoting/escaping (which explains the double backslash inside printf()'s arguments).

The above command line spawns two processes, one of which is a full C compiler, and it runs in 3 milliseconds on my embarassingly old home laptop (Core-I5 M480 at 2.7 GHz).

I'm not trying to be the old fart claiming that everything was better back in the day, but this (to me) almost makes C seem as approachable as BASIC on the old 8-bit machines, when looking at the relative complexity.