Abstract intocode into separate files.

day2.cr

@@ -1,25 +1,11 @@
+require "./intcode.cr"
 lines = File.read("day2.txt").lines.map(&.split(",").map(&.to_i32)).flatten
-def run(lines, noun, verb)
-  lines[1] = noun
-  lines[2] = verb
-  pos = 0
-  loop do
-    case lines[pos]
-    when 1
-      lines[lines[pos+3]] = lines[lines[pos+1]] + lines[lines[pos+2]]
-      pos += 4
-    when 2
-      lines[lines[pos+3]] = lines[lines[pos+1]] * lines[lines[pos+2]]
-      pos += 4
-    when 99
-      break
-    end
-  end
-  lines[0]
-end
 100.times do |noun|
   100.times do |verb|
-    if run(lines.dup, noun, verb) == 19690720
+    prog = lines.clone
+    prog[1] = noun
+    prog[2] = verb
+    if run(prog, [] of Int32)[1][0] == 19690720
       puts 100*noun + verb 
       break
     end