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Advent Of Code [Puzzle 1](https://adventofcode.com/2019/day/1) in [Fennel](https://fennel-lang.org/)
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(fn mass->fuel [mass] | |
(-> (tonumber mass) (/ 3) (math.floor) (- 2))) | |
(let [file (io.open "1.data" "r") | |
file-contents (file:read "*a") | |
mods (string.gmatch file-contents "%d+")] | |
(var total-fuel 0) | |
(each [mass mods] | |
(let [fuel (mass->fuel mass)] | |
(set total-fuel (+ total-fuel fuel)) | |
(var rest-fuel fuel) | |
(while (> rest-fuel 0) | |
(do | |
(set rest-fuel (mass->fuel rest-fuel)) | |
(if (> rest-fuel 0) | |
(set total-fuel (+ total-fuel rest-fuel))))))) | |
(print total-fuel)) |
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