2019/day9.m4

   1 divert(-1)dnl -*- m4 -*-
   2 # Usage: m4 [-Dfile=day9.input] day9.m4
   3
   4 include(`intcode.m4')ifelse(intcode(9), `ok', `',
   5 `errprint(`Missing IntCode initialization
   6 ')m4exit(1)')
   7
   8 parse(input)
   9 define(`try', `
  10   save()
  11   define(`read', $1)
  12   define(`write', `define(part$1, $'`1)')
  13   run(0)
  14   restore()')
  15 try(1)
  16 try(2)
  17 divert`'part1
  18 part2