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(ql:quickload '(fiveam uiop cl-ppcre fset lparallel arrows))
;; (setf lparallel:*kernel* (lparallel:make-kernel 8))
;; (declaim (optimize (speed 0) (space 0) (debug 3)))
(defun material (string)
(cond
((string= string "ore") :ore)
((string= string "clay") :clay)
((string= string "obsidian") :obsidian)
((string= string "geode") :geode)))
(defun parse-robot-recipe (line)
(cl-ppcre:register-groups-bind ((#'material robot) (#'parse-integer fq) (#'material fm) (#'parse-integer sq) (#'material sm))
("(\\w+) robot costs (\\d+) (\\w+)(?: and (\\d+) (\\w+))?" line)
(let ((first-material (fset:with (fset:empty-bag) fm fq)))
(fset:map (robot
(if sm (fset:with first-material sm sq)
first-material))))))
(defun can-build-robot-pm (requirements available)
(fset:subbag? requirements available))
(defun consume (requirements available)
(fset:bag-difference available requirements))
(defun material-collect (bots available-materials)
(fset:bag-sum bots available-materials))
(defun bot-requirements (type recipes)
(fset:lookup recipes type))
(defun next-step (build-next robots resources blueprints time-left)
(if (zerop time-left)
;; (list robots resources)
(fset:multiplicity resources :geode)
;; resources
(let ((req (bot-requirements build-next blueprints)))
(if (can-build-robot-pm req resources)
(let ((new-robots (fset:with robots build-next))
(resources-left (consume req resources)))
(probe new-robots
(material-collect robots resources-left)
blueprints (1- time-left)))
(next-step build-next
robots
(material-collect robots resources)
blueprints (1- time-left))))))
(defun next-step2 (build-next robots resources blueprints)
(let ((req (bot-requirements build-next blueprints)))
(when (can-build-robot-pm req resources)
(let ((new-robots (fset:with robots build-next))
(resources-left (consume req resources)))
(values new-robots (material-collect robots resources-left))))))
(defun probe2 (current-state blueprints)
(destructuring-bind (robots resources) current-state
(fset:reduce
(lambda (acc bot-type)
(multiple-value-bind (new-robots new-resources)
(next-step2 bot-type
robots
resources
blueprints)
(if new-robots (fset:with acc (list new-robots new-resources)) acc)))
(propose-builds robots (max-cost blueprints))
:initial-value (fset:set (list robots (material-collect robots resources))))))
(defun advance (robot-resource-list blueprints)
(fset:reduce
(lambda (new-states current-state)
(fset:union new-states
(probe2 current-state blueprints)
))
robot-resource-list
:initial-value (fset:empty-set)))
;; (resource-increase
;; (list (fset:bag :obsidian :ore) (fset:bag :clay)) 2)
(defun materials> (m1 m2)
(eq :greater
(fset:reduce (lambda (result material)
(if (eq result :equal)
(let ((c1 (fset:multiplicity m1 material))
(c2 (fset:multiplicity m2 material)))
(cond
((< c1 c2) :less)
((= c1 c2) :equal)
((> c1 c2) :greater)))
result))
'(:geode :obsidian :clay :ore)
:initial-value :equal)))
(defun leading-configs (robot-resource-list time-left truncate)
(let ((len (fset:size robot-resource-list)))
(format t "time-left: ~a, list: ~a~%" time-left len))
(fset:subseq
(fset:sort robot-resource-list
#'materials> :key (lambda (state) (resource-increase state time-left)))
0 truncate))
(fset:subseq
(fset:sort (fset:set 5 4 4 5 8 2) #'> ) 0 15)
;; (materials< (fset:bag :clay) (fset:bag :obsidian :ore))
(defun resource-increase (current-state time-left)
(destructuring-bind (robots resources) current-state
(reduce (lambda (acc material)
(fset:with acc material
(* time-left (fset:multiplicity robots material))))
'(:geode :obsidian :clay :ore)
:initial-value resources)))
(defun find-best (robot-resource-list blueprints time-left state-truncation)
(if (zerop time-left)
(arrows:-> robot-resource-list
(fset:subseq 0 3)
;; (cadar)
;; (fset:multiplicity :geode)
)
(find-best (leading-configs
(advance robot-resource-list blueprints)
(1- time-left) state-truncation)
blueprints (1- time-left) state-truncation)))
(defun max-cost (blueprint)
(fset:reduce
(lambda (acc key value)
(declare (ignore key))
(fset:union value acc))
blueprint
:initial-value (fset:empty-bag)))
(defun can-build (bots)
(append
(list :clay :ore)
(when (plusp (fset:multiplicity bots :clay)) (list :obsidian))
(when (plusp (fset:multiplicity bots :obsidian)) (list :geode))))
(defun propose-builds (bots costs)
(loop for try in (can-build bots)
when (or (eq :geode try)
(< (fset:multiplicity bots try)
(fset:multiplicity costs try)))
collect try))
(defun probe (robots resources blueprints time-left)
(reduce #'max
(mapcar
(lambda (next)
(next-step next
robots
resources
blueprints time-left))
(propose-builds robots (max-cost blueprints)))))
(defun get-blueprints (filename)
(mapcar
(lambda (l)
(let ((blueprint (uiop:split-string l :separator ":.")))
(cons (car blueprint)
(reduce #'fset:map-union
(mapcar #'parse-robot-recipe (butlast (cdr blueprint)))))))
(uiop:read-file-lines filename)))
(defun solver (blueprints time-left)
(apply #'+
(lparallel:pmap 'list
(lambda (bp)
(destructuring-bind (name . recipes) bp
(* (parse-integer name :start 10)
(probe (fset:bag :ore) (fset:empty-bag) recipes time-left))))
blueprints)))
(defun solver2 (blueprints time-left)
(lparallel:pmap 'list
(lambda (bp)
(destructuring-bind (name . recipes) bp
(declare (ignore name))
(probe (fset:bag :ore) (fset:empty-bag) recipes time-left)))
blueprints))
(let ((factory (cdar (get-blueprints "/home/titan/dev/scratch/AoC2022/19/eg-in")))
(time-left 30))
;; (next-step2 :clay (fset:bag :ore) (fset:bag :ore :ore) factory)
;; (probe2 (list (fset:bag :ore :clay) (fset:bag :ore :ore)) factory)
;; (arrows:->
;; (list (list (fset:bag :ore :clay) (fset:bag :ore :ore)))
;; (advance factory)
;; (advance factory)
;; (advance factory)
;; (advance factory)
;; (advance factory)
;; (advance factory)
;; (advance factory)
;; )
;; (max-cost factory)
(time
(find-best (list (list (fset:bag :ore) (fset:bag))) factory 32 1024))
)
;; (require :sb-sprof)
;; (progn
;; (sb-sprof:start-profiling)
;; (time
;; (probe (fset:bag :ore) (fset:empty-bag) (cdar (get-blueprints "eg-in")) 25))
;; (sb-sprof:stop-profiling)
;; (sb-sprof:report))
;; (step
;; (probe (fset:bag :ore) (fset:empty-bag) (cdar (get-blueprints "/home/titan/dev/scratch/AoC2022/19/eg-in")) 22))
;; (fiveam:test solution
;; ;; part1
;; ;; (fiveam:is (= 33 (solver (get-blueprints "eg-in") 24)))
;; (fiveam:is (= 1266 (solver (get-blueprints "/home/titan/dev/scratch/AoC2022/19/input") 24)))
;; )
;; (let ((blueprints
;; ;; (cdadr)
;; (get-blueprints "input")
;; )
;; ;; (materials '(:ore 8 :clay 20))
;; (materials (start-resources))
;; (bots (start-bots))
;; ;; (bots '(:geode 1 :ore 8 :clay 20))
;; (time-left 24))
;; (time
;; (apply #'+
;; (lparallel:pmap 'list
;; (lambda (bp)
;; (destructuring-bind (name . recipes) bp
;; (* (parse-integer name :start 10)
;; (probe bots materials recipes time-left))))
;; blueprints)))
;; ;; (time
;; ;; (print (probe bots materials blueprints 24)))
;; )
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