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This commit is contained in:
Adam Jeniski 2025-12-22 18:02:29 -05:00
parent 14ac947ae3
commit e51b3296d6
1 changed files with 19 additions and 22 deletions
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41
2025/src/day10.clj
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@ -1,7 +1,7 @@
(ns day10
(:require [clojure.math.combinatorics :as combo]
[input-manager])
(:import (com.microsoft.z3 BoolExpr Context Expr IntNum Optimize Optimize$Handle)))
(:import (com.microsoft.z3 Context Expr IntNum Optimize Optimize$Handle)))
(defn parse-line [line]
{:indicators (->> line
@ -37,8 +37,8 @@
(apply + (map minimum-button-mashing input))
;; part 2
(defn add-expressions [opt type expressions]
(.Add opt (into-array type expressions)))
(defn add-expressions [opt expressions]
(.Add opt (into-array Expr expressions)))
(->> input
(map (fn [{:keys [joltages buttons]}]
@ -52,25 +52,22 @@
count
range
(map #(.mkIntConst ctx (str "j" %))))]
(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)))))
(add-expressions opt (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 (for [[idx joltage] (map-indexed vector joltages)]
(let [jn (nth js idx)]
(.mkEq ctx jn (.mkInt ctx (long joltage))))))
(add-expressions opt (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 (.getValue mx))))))