Use xor in part 2 of day 2.

2020-12-01 21:45:41 -08:00 · 2020-12-01 21:45:41 -08:00 · bcb7d535a4
commit bcb7d535a4
parent d6aa267e8e
1 changed files with 1 additions and 1 deletions
--- a/day2.cr
+++ b/day2.cr
@ -30,7 +30,7 @@ def part2
    min, max, char, str = data
    min -= 1
    max -= 1
-    ((str[min] == char) || (str[max] == char) ) && str[min] != str[max]
+    (str[min] == char) ^ (str[max] == char)
  end

  puts total