Example #1
1
  public void writeTasks(OutputStream output) {
    try {
      output.write("[\n".getBytes());
      boolean needComma = false;
      File[] files = tasksDirectory.listFiles((FileFilter) FileFilterUtils.directoryFileFilter());
      List<Integer> numbers = new ArrayList<>();
      for (File directory : files) {
        try {
          numbers.add(Integer.valueOf(directory.getName()));
        } catch (Throwable ignored) {

        }
      }
      numbers.sort(Comparator.<Integer>reverseOrder());
      numbers = numbers.subList(0, Math.min(100, numbers.size()));
      for (int taskId : numbers) {
        File infoFile = new File(new File(tasksDirectory, String.valueOf(taskId)), "info.json");
        if (!infoFile.exists()) {
          continue;
        }
        if (needComma) {
          output.write(",\n".getBytes());
        } else {
          needComma = true;
        }
        try (FileInputStream fis = new FileInputStream(infoFile)) {
          IOUtils.copy(fis, output);
        }
      }
      output.write("]\n".getBytes());
    } catch (IOException e) {
      throw Throwables.propagate(e);
    }
  }
Example #2
0
 public static void main(String[] args) throws IOException {
   BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
   String[] temp = in.readLine().split(" ");
   int n = Integer.parseInt(temp[0]);
   int s = Integer.parseInt(temp[1]);
   HashMap<Integer, Integer> buy = new HashMap<>();
   HashMap<Integer, Integer> sell = new HashMap<>();
   for (int i = 1; i <= n; i++) {
     temp = in.readLine().split(" ");
     int p = Integer.parseInt(temp[1]);
     int q = Integer.parseInt(temp[2]);
     if (temp[0].charAt(0) == 'B') {
       if (buy.containsKey(p)) buy.put(p, buy.get(p) + q);
       else buy.put(p, q);
     } else {
       if (sell.containsKey(p)) sell.put(p, sell.get(p) + q);
       else sell.put(p, q);
     }
   }
   ArrayList<Integer> buyArr = new ArrayList<>();
   ArrayList<Integer> sellArr = new ArrayList<>();
   for (Integer i : buy.keySet()) buyArr.add(i);
   for (Integer i : sell.keySet()) sellArr.add(i);
   Collections.sort(buyArr, Comparator.reverseOrder());
   Collections.sort(sellArr);
   for (int i = Math.min(s, sellArr.size()) - 1; i >= 0; i--)
     System.out.println("S " + sellArr.get(i) + " " + sell.get(sellArr.get(i)));
   for (int i = 0; i < s && i < buyArr.size(); i++)
     System.out.println("B " + buyArr.get(i) + " " + buy.get(buyArr.get(i)));
 }
Example #3
0
  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    String[] numbers = sc.nextLine().split(" ");

    String sort = sc.nextLine();

    if (sort.equals("Ascending")) {
      List<Integer> output =
          Arrays.stream(numbers).map(Integer::parseInt).sorted().collect(Collectors.toList());

      for (Object items : output) {
        System.out.print(items + " ");
      }
    } else if (sort.equals("Descending")) {
      List<Integer> output =
          Arrays.stream(numbers)
              .map(Integer::parseInt)
              .sorted(Comparator.reverseOrder())
              .collect(Collectors.toList());

      for (Object items : output) {
        System.out.print(items + " ");
      }
    }
  }
Example #4
0
  @Override
  public void sort(Comparable[] items, int lo, int hi) {
    Integer[] gaps =
        IntStream.generate(
                new IntSupplier() {
                  private int current = lo;

                  @Override
                  public int getAsInt() {
                    return current++ * 3 + 1;
                  }
                })
            .limit(GAPS_SIZE_LIMIT)
            .boxed()
            .sorted(Comparator.reverseOrder())
            .toArray(Integer[]::new);
    for (Integer gap : gaps) {
      for (int j = lo; j < hi; j += gap) {
        for (int k = j; k > 0; k -= gap) {
          if (items[k - gap].compareTo(items[k]) > 0) {
            swap(items, k, k - gap);
          } else {
            break;
          }
        }
      }
    }
  }
  @Override
  @Test
  public void toSortedBag() {
    ImmutableBag<String> immutableBag = this.newBag();
    MutableSortedBag<String> sortedBag = immutableBag.toSortedBag();

    Verify.assertSortedBagsEqual(TreeBag.newBag(), sortedBag);

    MutableSortedBag<String> reverse = immutableBag.toSortedBag(Comparator.<String>reverseOrder());
    Verify.assertSortedBagsEqual(TreeBag.newBag(Comparator.<String>reverseOrder()), reverse);

    ImmutableBag<String> immutableBag1 = this.newBag();
    MutableSortedBag<String> sortedBag1 = immutableBag1.toSortedBag(Comparator.reverseOrder());
    Verify.assertSortedBagsEqual(TreeBag.newBag(), sortedBag1.toSortedBag());

    ImmutableBag<String> immutableBag2 = this.newBag();
    MutableSortedBag<String> sortedBag2 = immutableBag2.toSortedBag(Comparator.reverseOrder());
    Verify.assertSortedBagsEqual(TreeBag.newBag(Comparator.<String>reverseOrder()), sortedBag2);
  }
 public Map<String, Integer> top(int q) {
   Collector<Entry<String, Integer>, ?, LinkedHashMap<String, Integer>> collector =
       toMap(
           Entry::getKey,
           Entry::getValue,
           (x, y) -> {
             throw new AssertionError();
           },
           LinkedHashMap::new);
   LinkedHashMap<String, Integer> collected =
       wordMap
           .entrySet()
           .stream()
           .sorted(comparingByValue(Comparator.reverseOrder()))
           .collect(collector);
   return collected.entrySet().stream().limit(q).collect(collector);
 }
 public static void main(String[] args) throws IOException {
   BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
   int t = Integer.parseInt(in.readLine());
   for (int i = 999; i >= 100; i--) {
     for (int j = i; j >= 100; j--) {
       if (i * j >= 101101 && isPalindrome(i * j)) palindromes.add(i * j);
     }
   }
   Collections.sort(palindromes, Comparator.reverseOrder());
   for (int aa = 1; aa <= t; aa++) {
     int n = Integer.parseInt(in.readLine());
     for (int i : palindromes) {
       if (i < n) {
         System.out.println(i);
         break;
       }
     }
   }
 }
Example #8
0
  /**
   * ShellSort runs multiple InsertionSorts with a custom gap between elements With a a final pass
   * with a gap size of 1 This takes advantage of InsertionSorts adaptive nature on partial sorted
   * data
   *
   * @param gaps must be descendingly sorted and contain the element 1
   */
  public static <T> void sort(T[] data, Integer[] gaps, Comparator<? super T> cmp) {
    assert data != null && cmp != null && gaps != null && gaps.length > 0;
    if (!java.util.Arrays.asList(gaps).contains(1)) {
      throw new IllegalArgumentException(
          "The gap-sequence needs to contain, 1 as the last element");
    }

    // Make sure that the gaps are decreasingly sorted
    java.util.Arrays.sort(gaps, Comparator.<Integer>reverseOrder());

    for (int gap : gaps) {

      // Insertion Sort, with a specified gap between elements
      // TODO: consider refactoring this into InsertionSort
      for (int i = gap; i < data.length; i++) {
        // Swap if left side is bigger, exits the loop if it's not
        for (int j = i; j >= gap && (cmp.compare(data[j - gap], data[j]) > 0); j -= gap) {
          Arrays.swap(data, j - gap, j);
        }
      }
    }
  }
  public static Map<String, Integer> freq(String safeLyrics) {
    Map<String, Integer> freq = new HashMap<>();

    Matcher matcher = tokenizer.matcher(safeLyrics);

    // Create a map of the frequency
    while (matcher.find()) {
      String word = matcher.group().toLowerCase();
      freq.put(word, freq.getOrDefault(word, 0) + 1);
    }

    // Sort the map by descending value
    Map<String, Integer> sortedMap =
        freq.entrySet()
            .stream()
            .sorted(Map.Entry.comparingByValue(Comparator.reverseOrder()))
            .collect(
                Collectors.toMap(
                    Entry::getKey, Entry::getValue, (e1, e2) -> e1, LinkedHashMap::new));

    return sortedMap;
  }
  @Test
  public void testMaxAll() {
    List<String> input = Arrays.asList("a", "bb", "c", "", "cc", "eee", "bb", "ddd");
    checkCollector(
        "maxAll",
        Arrays.asList("eee", "ddd"),
        input::stream,
        MoreCollectors.maxAll(Comparator.comparingInt(String::length)));
    Collector<String, ?, String> maxAllJoin =
        MoreCollectors.maxAll(Comparator.comparingInt(String::length), Collectors.joining(","));
    checkCollector("maxAllJoin", "eee,ddd", input::stream, maxAllJoin);
    checkCollector(
        "minAll",
        1L,
        input::stream,
        MoreCollectors.minAll(Comparator.comparingInt(String::length), Collectors.counting()));
    checkCollector(
        "minAllEmpty",
        Arrays.asList(""),
        input::stream,
        MoreCollectors.minAll(Comparator.comparingInt(String::length)));
    checkCollectorEmpty(
        "maxAll",
        Collections.emptyList(),
        MoreCollectors.maxAll(Comparator.comparingInt(String::length)));
    checkCollectorEmpty("maxAllJoin", "", maxAllJoin);

    List<Integer> ints = IntStreamEx.of(new Random(1), 10000, 1, 1000).boxed().toList();
    List<Integer> expectedMax = getMaxAll(ints, Comparator.naturalOrder());
    List<Integer> expectedMin = getMaxAll(ints, Comparator.reverseOrder());
    Collector<Integer, ?, SimpleEntry<Integer, Long>> downstream =
        MoreCollectors.pairing(
            MoreCollectors.first(),
            Collectors.counting(),
            (opt, cnt) -> new AbstractMap.SimpleEntry<>(opt.get(), cnt));

    checkCollector("maxAll", expectedMax, ints::stream, MoreCollectors.maxAll(Integer::compare));
    checkCollector("minAll", expectedMin, ints::stream, MoreCollectors.minAll());
    checkCollector(
        "entry",
        new SimpleEntry<>(expectedMax.get(0), (long) expectedMax.size()),
        ints::stream,
        MoreCollectors.maxAll(downstream));
    checkCollector(
        "entry",
        new SimpleEntry<>(expectedMin.get(0), (long) expectedMin.size()),
        ints::stream,
        MoreCollectors.minAll(downstream));

    Integer a = new Integer(1), b = new Integer(1), c = new Integer(1000), d = new Integer(1000);
    ints = IntStreamEx.range(10, 100).boxed().append(a, c).prepend(b, d).toList();
    for (StreamExSupplier<Integer> supplier : streamEx(ints::stream)) {
      List<Integer> list = supplier.get().collect(MoreCollectors.maxAll());
      assertEquals(2, list.size());
      assertSame(d, list.get(0));
      assertSame(c, list.get(1));

      list = supplier.get().collect(MoreCollectors.minAll());
      assertEquals(2, list.size());
      assertSame(b, list.get(0));
      assertSame(a, list.get(1));
    }
  }
  /*
   Result: 12,690 ±(99.9%) 0,148 s/op [Average]
   		  Statistics: (min, avg, max) = (12,281, 12,690, 12,784), stdev = 0,138
   		  Confidence interval (99.9%): [12,543, 12,838]
   		  Samples, N = 15
   		        mean =     12,690 ±(99.9%) 0,148 s/op
   		         min =     12,281 s/op
   		  p( 0,0000) =     12,281 s/op
   		  p(50,0000) =     12,717 s/op
   		  p(90,0000) =     12,784 s/op
   		  p(95,0000) =     12,784 s/op
   		  p(99,0000) =     12,784 s/op
   		  p(99,9000) =     12,784 s/op
   		  p(99,9900) =     12,784 s/op
   		  p(99,9990) =     12,784 s/op
   		  p(99,9999) =     12,784 s/op
   		         max =     12,784 s/op


   		# Run complete. Total time: 00:06:26

   		Benchmark                                               Mode  Cnt   Score   Error  Units
   		ShakespearePlaysScrabbleWithRxJava.measureThroughput  sample   15  12,690 ± 0,148   s/op

   		Benchmark                                              Mode  Cnt       Score      Error  Units
  ShakespearePlaysScrabbleWithRxJava.measureThroughput   avgt   15  250074,776 ± 7736,734  us/op
  ShakespearePlaysScrabbleWithStreams.measureThroughput  avgt   15   29389,903 ± 1115,836  us/op

   */
  @Benchmark
  @BenchmarkMode(Mode.SampleTime)
  @OutputTimeUnit(TimeUnit.MILLISECONDS)
  @Warmup(iterations = 50)
  @Measurement(iterations = 50)
  @Fork(1)
  public List<Entry<Integer, List<String>>> measureThroughput() throws InterruptedException {

    //  to compute the score of a given word
    Function<Integer, PublisherBase<Integer>> scoreOfALetter =
        letter -> PublisherBase.just(letterScores[letter - 'a']);

    // score of the same letters in a word
    Function<Entry<Integer, LongWrapper>, PublisherBase<Integer>> letterScore =
        entry ->
            PublisherBase.just(
                letterScores[entry.getKey() - 'a']
                    * Integer.min(
                        (int) entry.getValue().get(),
                        (int) scrabbleAvailableLetters[entry.getKey() - 'a']));

    Function<String, PublisherBase<Integer>> toIntegerPublisherBase =
        string ->
            PublisherBase.fromIterable(
                IterableSpliterator.of(string.chars().boxed().spliterator()));

    // Histogram of the letters in a given word
    Function<String, PublisherBase<HashMap<Integer, LongWrapper>>> histoOfLetters =
        word ->
            toIntegerPublisherBase
                .apply(word)
                .collect(
                    () -> new HashMap<Integer, LongWrapper>(),
                    (HashMap<Integer, LongWrapper> map, Integer value) -> {
                      LongWrapper newValue = map.get(value);
                      if (newValue == null) {
                        newValue = () -> 0L;
                      }
                      map.put(value, newValue.incAndSet());
                    });

    // number of blanks for a given letter
    Function<Entry<Integer, LongWrapper>, PublisherBase<Long>> blank =
        entry ->
            PublisherBase.just(
                Long.max(
                    0L, entry.getValue().get() - scrabbleAvailableLetters[entry.getKey() - 'a']));

    // number of blanks for a given word
    Function<String, PublisherBase<Long>> nBlanks =
        word ->
            histoOfLetters
                .apply(word)
                .flatMap(map -> PublisherBase.fromIterable(() -> map.entrySet().iterator()))
                .flatMap(blank)
                .reduce(Long::sum);

    // can a word be written with 2 blanks?
    Function<String, PublisherBase<Boolean>> checkBlanks =
        word -> nBlanks.apply(word).flatMap(l -> PublisherBase.just(l <= 2L));

    // score taking blanks into account letterScore1
    Function<String, PublisherBase<Integer>> score2 =
        word ->
            histoOfLetters
                .apply(word)
                .flatMap(map -> PublisherBase.fromIterable(() -> map.entrySet().iterator()))
                .flatMap(letterScore)
                .reduce(Integer::sum);

    // Placing the word on the board
    // Building the streams of first and last letters
    Function<String, PublisherBase<Integer>> first3 =
        word ->
            PublisherBase.fromIterable(
                IterableSpliterator.of(word.chars().boxed().limit(3).spliterator()));
    Function<String, PublisherBase<Integer>> last3 =
        word ->
            PublisherBase.fromIterable(
                IterableSpliterator.of(word.chars().boxed().skip(3).spliterator()));

    // Stream to be maxed
    Function<String, PublisherBase<Integer>> toBeMaxed =
        word ->
            PublisherBase.fromArray(first3.apply(word), last3.apply(word))
                .flatMap(PublisherBase -> PublisherBase);

    // Bonus for double letter
    Function<String, PublisherBase<Integer>> bonusForDoubleLetter =
        word -> toBeMaxed.apply(word).flatMap(scoreOfALetter).reduce(Integer::max);

    // score of the word put on the board
    Function<String, PublisherBase<Integer>> score3 =
        word ->
            PublisherBase.fromArray(
                    score2.apply(word),
                    score2.apply(word),
                    bonusForDoubleLetter.apply(word),
                    bonusForDoubleLetter.apply(word),
                    PublisherBase.just(word.length() == 7 ? 50 : 0))
                .flatMap(PublisherBase -> PublisherBase)
                .reduce(Integer::sum);

    Function<
            Function<String, PublisherBase<Integer>>, PublisherBase<TreeMap<Integer, List<String>>>>
        buildHistoOnScore =
            score ->
                PublisherBase.fromIterable(() -> shakespeareWords.iterator())
                    .filter(scrabbleWords::contains)
                    .filter(word -> checkBlanks.apply(word).blockingFirst())
                    .collect(
                        () -> new TreeMap<Integer, List<String>>(Comparator.reverseOrder()),
                        (TreeMap<Integer, List<String>> map, String word) -> {
                          Integer key = score.apply(word).blockingFirst();
                          List<String> list = map.get(key);
                          if (list == null) {
                            list = new ArrayList<String>();
                            map.put(key, list);
                          }
                          list.add(word);
                        });

    // best key / value pairs
    List<Entry<Integer, List<String>>> finalList2 =
        buildHistoOnScore
            .apply(score3)
            .flatMap(map -> PublisherBase.fromIterable(() -> map.entrySet().iterator()))
            .take(3)
            .collect(
                () -> new ArrayList<Entry<Integer, List<String>>>(),
                (list, entry) -> {
                  list.add(entry);
                })
            .blockingFirst();

    //        System.out.println(finalList2);

    return finalList2;
  }
Example #12
0
 public Solution295() {
   smallerElements = new PriorityQueue<>(Comparator.reverseOrder());
   largerElements = new PriorityQueue<>();
 }