Contents

(ns queen-attack
  (:require [clojure.string :as str]
            [clojure.set    :as set]))

(defn board-string [queens]
  (let [piece-at (set/map-invert queens)]
    (str/join "\n"
              (map #(str/join " " %1)
                   (conj (vec (partition 8
                              (for [x (range 8)
                                    y (range 8)]
                                (.toUpperCase (name (or (piece-at [x y])
                                    "_")))
                                  )))
                         nil)))))

(defn same-row [queens]
  (= (first (:w queens))
     (first (:b queens))))

(defn same-col [queens]
  (= (last (:w queens))
     (last (:b queens))))

(defn diagonal [queens]
  (let [xdiff (- (first (:w queens)) (first (:b queens)))
        ydiff (- (last  (:w queens)) (last  (:b queens)))]
    (= xdiff ydiff)))

(defn can-attack [queens]
  (or (same-row queens)
      (same-col queens)
      (diagonal queens)))

Version data entries

396 entries across 396 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.179	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.178	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.177	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.176	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.175	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.174	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.173	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.172	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.171	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.170	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.169	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.167	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.166	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.165	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.164	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.163	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.162	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.161	tracks/clojure/exercises/queen-attack/src/example.clj
trackler-2.2.1.160	tracks/clojure/exercises/queen-attack/src/example.clj