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(load "/Users/colin/lib/test-manager/load.scm") | |
(define (prime-factors product) | |
(list-factors product 2)) | |
(define (list-factors product test-factor) | |
(if (< product 2) | |
(list) | |
(if (= 0 (modulo product test-factor)) | |
(append (list test-factor) (list-factors (/ product test-factor) test-factor)) |
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def printUpTo(limit: Int): Unit = { | |
for(i <- (0 to limit)) { | |
println("i = " + i) | |
} | |
} |
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(ns colin.problems-99) | |
(defn combinations [size, ls] | |
(filter | |
#(and (not (seq? (first %))) (= size (count %))) | |
(tree-seq | |
#(seq? (first %)) | |
seq | |
(map | |
(fn [x] |
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module Kernel | |
def collate(*methods) | |
methods.map {|m| send(m)} | |
end | |
end | |
first, last = User.collate :first, :last # => [#<User id: 1 name: "Pat">, #<User id: 85 name: "Joe">] | |
avg, max, min = [4, 3, 1, 5, 2].collate :avg, :max, :min # => [3.0, 5, 1] |
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;;; Pythagorean Mean computation | |
;;; Using a lazy sequence to allow for computing the mean at a given point in | |
;;; an infinite sequence. | |
;;; | |
;;; Idea from Clojure mailing list: | |
;;; (http://groups.google.com/group/clojure/browse_thread/thread/c5b98ef74dc5809f) | |
;;; | |
;;; Reference: | |
;;; http://rosettacode.org/wiki/Averages/Pythagorean_means |
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(ns sieve | |
(:use clojure.test)) | |
(defn square [x] (* x x)) | |
(defn seq-contains? [ls x] | |
(boolean (some #{x} ls))) | |
(defn multiple-of? [product divisor] | |
(and (= 0 (mod product divisor)) |
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(ns primeFactors) | |
(defn square [n] (* n n)) | |
(defn divisible-by? [n candidate] | |
(= 0 (rem n candidate))) | |
(defn of [n] | |
(loop [factors [] n n candidate 2] | |
(cond |
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; Can someone explain this to me? | |
(use 'clojure.test) | |
(are [x y] (= x y) | |
'(4 9 16) (map (fn [x] (* x x)) '(2 3 4))) | |
;;; java.lang.Exception: Unsupported binding form: clojure.lang.LazySeq@7bed76a7 | |
(macroexpand '(are [x y] (= x y) |
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[java] FAIL in (can-test-using-local-bindings) (test_clojure.clj:87) | |
[java] but got :pass | |
[java] expected: (= (quote (4 9 16)) (map (fn [x] (* x x)) (quote (2 3 4)))) | |
[java] actual: (#<core$_EQ_ clojure.core$_EQ_@a947850> (4 9 16) (4 9 16)) | |
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;;; Removing ns info from macro expansion | |
(use 'clojure.walk) | |
(defn macroexpand-no-ns [form] | |
(prewalk (fn [x] (if (or (symbol? x) (keyword? x)) (symbol (name x)) x)) | |
(macroexpand form))) | |
;;; Example |