0018.clj

(def input-data (list 75
		      95 64
		      17 47 82
		      18 35 87 10
		      20  4 82 47 65
		      19  1 23 75  3 34
		      88  2 77 73  7 63 67
		      99 65  4 28  6 16 70 92
		      41 41 26 56 83 40 80 70 33
		      41 48 72 33 47 32 37 16 94 29
		      53 71 44 65 25 43 91 52 97 51 14
		      70 11 33 28 77 73 17 78 39 68 17 57
		      91 71 52 38 17 14 91 43 58 50 27 29 48
		      63 66  4 68 89 53 67 30 73 16 69 87 40 31
              4 62 98 27 23  9 70 98 73 93 38 53 60  4 23))

(def input-data (reverse (map #(take (inc %) (drop (apply + (range (inc %))) input-data)) (range 15))))

(def solutions (list (fn []
                       
(first (reduce (fn [total next] (map max (map #(+ %1 %2) total next) (map #(+ %1 %2) (rest total) next))) input-data))

)))