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(require '[buddy.core.codecs.base64 :as base64]
         '[cognitect.aws.util :as util]
         '[clojure.string :as str]
         '[jsonista.core :as json]
         '[cognitect.aws.credentials :as creds]
         '[cognitect.aws.http :as http])
(import '[java.util Date])

(defn host-style-bucket-uri [bucket]
  (str "http://" bucket ".s3.amazonaws.com/"))

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{:deps {net.cgrand/xforms {:mvn/version "0.19.0"}
        org.clojure/clojure {:mvn/version "1.10.1"}
        org.clojure/core.async {:mvn/version "0.4.500"}}}

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(require '[clojure.set :as s])

;; Graph Data from the Picture
(def graph [#{:a :b}
            #{:a :d}
            #{:a :h}
            #{:b :c}
            #{:b :d}
            #{:d :c}
            #{:d :e}

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;; P.S. 閱讀指引，在 Code Snippet（白色的地方）按Ctrl＋Enter看結果。也可以修改後按Ctrl＋Enter～

;; 假設我想寫一個簡單的猜字遊戲。

;; 首先，我應該要有一本字典提供生字。

(def dict ["Clojure" "Java" "Go" "Javascript" "Haskell" "Scala" "C" "C++" "Rust" "C#" "Prolog"])

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(defproject test-cljail "0.1.0-SNAPSHOT"
  :description "FIXME: write description"
  :url "http://example.com/FIXME"
  :license {:name "Eclipse Public License"
            :url "http://www.eclipse.org/legal/epl-v10.html"}
  :dependencies [[org.clojure/clojure "1.8.0"]
                 [clojail "1.0.6"]])

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

(def result
(run* [q]
  (fresh [a b c d e f g h p ab cd ef gh ppp]
    (fd/in a b c d e f g h p (fd/interval 1 9)) ; why not zero?
    (fd/in ab cd ef gh (fd/interval 10 99))
    (fd/in ppp (fd/interval 100 999))
    (fd/eq

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public class Mailer {

  public void send(String content) {
      String to = "abcd@gmail.com";
      String from = "web@gmail.com";
      String host = "localhost";

      // Get system properties
      Properties properties = System.getProperties();

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// Parameter Object opts instead of withQuot and withComma
function trickyToString(data, opts) {
   //trickyToString become a Template method
   // quot and comma flag become Strategy of trickyToString method
   var quotFunc = opts.withQuot || function(s){ return s; };
   var commaFunc = opts.withComma || function(){ return ","; };
   var outStr = "";
   for( key in data ) {
     outStr = outStr + quotFunc(key) + commaFunc() + quotFunc(data[key]) + "\n";
   }

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function trickyToString(data, withComma, withQuot) {
   var outStr = "";
   for( key in data ) {
     outStr = outStr + quot(key, withQuot);
     if(withComma) {
        if(withQuot) {
           outStr = outStr + "," + quot(data[key], withQuot);
        } else {
           outStr = outStr + ",";
        }

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function trickyToString(data, withComma) {
   var outStr = "";
   for( key in data ) {
     outStr = outStr + key;
     if(withComma) {
       outStr = outStr + "," + data[key];
     } else {
       outStr = outStr + ";" + data[key];
     }
     outStr = outStr + "\n";