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This commit is contained in:
Adam Jeniski 2025-12-22 18:00:33 -05:00
parent 8fa11862e1
commit 14ac947ae3
1 changed files with 23 additions and 29 deletions
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52
2025/src/day10.clj
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@ -37,6 +37,9 @@
(apply + (map minimum-button-mashing input))
;; part 2
(defn add-expressions [opt type expressions]
(.Add opt (into-array type expressions)))
(->> input
(map (fn [{:keys [joltages buttons]}]
(let [ctx (Context.)
@ -49,35 +52,26 @@
count
range
(map #(.mkIntConst ctx (str "j" %))))]
(.Add
opt
(into-array
BoolExpr
(for [idx (range (count joltages))]
(let [jn (nth js idx)
summation-args (->> buttons
(map set)
(map-indexed vector)
(filter #(contains? (second %) idx))
(map first)
(map #(nth bs %))
(into-array Expr)
(.mkAdd ctx))]
(.mkEq ctx jn summation-args)))))
(.Add
opt
(into-array
Expr
(for [[idx joltage] (map-indexed vector joltages)]
(let [jn (nth js idx)]
(.mkEq ctx jn (.mkInt ctx (long joltage)))))))
(.Add
opt
(into-array
Expr
(for [b bs]
(.mkGe ctx b (.mkInt ctx (long 0))))))
(add-expressions opt BoolExpr
(for [idx (range (count joltages))]
(let [jn (nth js idx)
summation-args (->> buttons
(map set)
(map-indexed vector)
(filter #(contains? (second %) idx))
(map first)
(map #(nth bs %))
(into-array Expr)
(.mkAdd ctx))]
(.mkEq ctx jn summation-args))))
(add-expressions opt Expr
(for [[idx joltage] (map-indexed vector joltages)]
(let [jn (nth js idx)]
(.mkEq ctx jn (.mkInt ctx (long joltage))))))
(add-expressions opt Expr
(for [b bs]
(.mkGe ctx b (.mkInt ctx (long 0)))))
(let [^Optimize$Handle mx (.MkMinimize opt (.mkAdd ctx (into-array Expr bs)))]
(.Check opt (into-array Expr []))
(.getInt ^IntNum (.getLower mx))))))
(.getInt ^IntNum (.getValue mx))))))
(apply +))