Clean up day 5.

day5.cr

@@ -14,32 +14,23 @@ end
 def get_id(str)
   col = str[0..6]
   row = str[7..]
-  {partition(col, (0..127).to_a)[0], partition(row, (0..7).to_a)[0]}
+  id({partition(col, (0..127).to_a)[0], partition(row, (0..7).to_a)[0]})
 end
 
 def id(t)
-  r, c = t
-  r * 8 + c
+  t[0]*8 + t[1]
 end
 
 def part1
   input = INPUT.clone
-  max = input.max_of do |line|
-    r, c = get_id(line)
-    r * 8 + c
-  end
-  puts max
+  puts(input.max_of &->get_id(String))
 end
 
 def part2
   input = INPUT.clone
-  seen = Set(Int32).new
-  max = input.each do |line|
-    seen << id(get_id(line))
-  end
+  seen = input.map &->get_id(String)
   candidates = [] of Int32
   128.times do |r|
-    next if r == 0 || r == 127
     8.times do |c|
       next if seen.includes? id({r, c})
       candidates << id({r,c})