X-Git-Url: http://git.jkinsey.net/?p=adventofcode2019.git;a=blobdiff_plain;f=src%2Fadventofcode2019%2Flib.clj;fp=src%2Fadventofcode2019%2Flib.clj;h=4b424a8fd47f53a92091bc29f635af1f7ee0ecc2;hp=890ddf5b8cef7ca064c5608f61736a675aaee8e0;hb=49dee54b66741b6ad08ef15fb46e15310edbd765;hpb=e26daef486624d7197207d38b601a4e505e6ef26

diff --git a/src/adventofcode2019/lib.clj b/src/adventofcode2019/lib.clj
index 890ddf5..4b424a8 100644
--- a/src/adventofcode2019/lib.clj
+++ b/src/adventofcode2019/lib.clj
@@ -24,6 +24,9 @@
   (+ (Math/abs (- ax bx))
      (Math/abs (- ay by))))
 
+(defn mmap [f m]
+  (reduce-kv #(assoc %1 %2 (f %3)) {} m))
+
 (def part1 
   #(println (str "Part 1: " %)))
 (def part2