aoc 2019 day2 part 1

thing.ijs

raw =: '1,9,10,3,2,3,11,0,99,30,40,50'
ints =: ". every (',' cut raw)

run_one =: {{
	'op src1 src2 dst' =. (x + i.4) { y

	select. op
	case. 1 do. ((src1{y)+(src2{y)) dst } y
	case. 2 do. y((src1{y)*(src2{y)) dst } y
	case. 99 do. throw. 'oops'
	case. do. echo 'unknown opcode: ' , ": op NB. then somehow exit
	end.
	pos =. pos + 4
}}


run =: {{
	pos =. 0

	try.
		while. 1 do.
			y =. pos run_one y
			pos =. pos + 4
		end.
	catch.

	end.
	{. y
}}

run ints