Paul Bostrom pbostrom

pbostrom / gist:3251454

Created August 3, 2012 20:56 — forked from llasram/gist:3251293

Transaction side effects

	(let [q (ref []), x (ref 0)]
	(defn run-side-effects [_]
	(let [fs (dosync
	(let [q' @q]
	(ref-set q [])
	q'))]
	(doseq [f fs] (f))))

	(defn alter-and-order-side-effects []
	(dosync

pbostrom / sum-list.clj

Last active December 13, 2015 21:58 — forked from swannodette/notes.clj

Generates lists of size M containing natural numbers which add up to N (forked from David Nolen with some tweaks to run on cwo.io)

	(require '[clojure.core.logic :refer :all])
	(require '[clojure.core.logic.fd :as fd])

	(defn sumo
	([l n] (sumo l 0 n))
	([l acc n]
	(matche [l]
	([[]] (fd/== acc n))
	([[x . r]]
	(fresh [nacc]

pbostrom / gist:5342129

Last active December 15, 2015 23:39 — forked from swannodette/gist:3217582

Sudoku solver via https://gist.github.com/swannodette/3217582, modified for Twitter REPL

	;; works with core.logic 0.8.4
	(require '[clojure.core.logic :refer :all])
	(require '[clojure.core.logic.fd :as fd])

	(defn get-square [rows x y]
	(for [x (range x (+ x 3))
	y (range y (+ y 3))]
	(get-in rows [x y])))

	(defn init [vars hints]