Support code for students (Python version).
The runtime.c file needs to be compiled by doing the following
gcc -c -g -std=c99 runtime.c
This will produce a file named runtime.o. The -g flag is to tell the
compiler to produce debug information that you may need to use
the gdb (or lldb) debugger.
On a Mac with an M1 (ARM) processor, use the -arch x86_64 flag to
compile the runtime:
gcc -c -g -std=c99 -arch x86_64 runtime.c