{"id":426585,"date":"2021-04-08T15:05:25","date_gmt":"2021-04-08T07:05:25","guid":{"rendered":"http:\/\/4563.org\/?p=426585"},"modified":"2021-04-08T15:05:25","modified_gmt":"2021-04-08T07:05:25","slug":"%e4%b8%8d%e7%9f%a5%e9%81%93%e6%9c%89%e6%b2%a1%e6%9c%89%e6%9b%b4%e5%a5%bd%e7%9a%84%e5%86%99%e6%b3%95","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=426585","title":{"rendered":"\u4e0d\u77e5\u9053\u6709\u6ca1\u6709\u66f4\u597d\u7684\u5199\u6cd5"},"content":{"rendered":"
\n
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\u4e0d\u77e5\u9053\u6709\u6ca1\u6709\u66f4\u597d\u7684\u5199\u6cd5 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : LowBi <\/span> <\/i> 4<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

RT.\u4e2a\u4eba\u9879\u76ee\u4e0a\u7684\u4e00\u4e2a\u95ee\u9898\uff0c\u5199\u4e86\u4e2a\u4f8b\u5b50\uff0c\u81ea\u5df1\u611f\u89c9\u5199\u7684\u65b9\u6cd5\u8f83\u7b28\u3002 <\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (8<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : javapythongo <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u8fd9\u4e2a\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u662f O(m*n)\u4e86\uff0c\u800c\u4e14\u5728 if(x[i] == y[j])\u5224\u5b9a\u76f8\u7b49\u8d4b\u503c\u540e\uff0c\u5e94\u8be5\u76f4\u63a5 break \u3002
    \u53ef\u4ee5\u5148\u904d\u5386 y \u6570\u7ec4\uff0c\u5b58\u50a8\u5728\u4e00\u4e2a set \u96c6\u5408\u4e2d\uff0c\u518d\u904d\u5386 x \u6570\u7ec4\uff0c\u539f\u5730\u4fee\u6539\u5373\u53ef\uff0c\u8fd9\u6837\u5b50\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u662f O(m+n) <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : LGA1150 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    int[] x = {1,2,3,4,5,6,7};
    int[] y = {2,4,7};
    int[] z = Arrays.stream(x).map(e -> Arrays.binarySearch(y, e) < 0 ? 0 : e).toArray();
    System.out.println(Arrays.toString(z));
    \u9700\u8981\u4fdd\u8bc1 y \u6709\u5e8f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : LGA1150 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5982\u679c\u50cf #1 \u8bf4\u7684\u4f7f\u7528\u96c6\u5408\u5e76\u539f\u5730\u4fee\u6539\uff1a
    Set<Integer> set = Arrays.stream(y).boxed().collect(Collectors.toSet());
    for (int i = 0; i < x.length; i++) {
    if (!set.contains(x[i])) x[i]=0;
    }
    \u4e0d\u7528\u4fdd\u8bc1 y \u6709\u5e8f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zjp <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0d\u5047\u8bbe\u6570\u7ec4\u6709\u5e8f\u548c\u4e0d\u91cd\u590d\u7684\u60c5\u51b5
    int[] x = {1, 2, 3, 4, 5, 6, 7};
    int[] y = {2, 4, 7};
    Map<Integer, Long> count = Arrays.stream(y).boxed()
    .collect(Collectors.groupingBy(Function.identity(), Collectors.counting()));
    int[] z = Arrays.stream(x).boxed()
    .map(e -> count.containsKey(e) && count.put(e, count.get(e) – 1) > 0 ? e : 0)
    .mapToInt(Integer::intValue).toArray();
    System.out.println(“z = ” + Arrays.toString(z)); <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zjp <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @zjp \u5bf9 IntStream \u4e0d\u719f\u6089\uff0cboxed \u7136\u540e mapToInt \u662f\u591a\u4f59\u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : LowBi <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @javapythongo @LGA1150 @zjp \u611f\u8c22\u5927\u4f6c\u4eec\u63d0\u4f9b\u4ee3\u7801\u601d\u8def <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : no1xsyzy <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u8fd9\u5224\u65ad a!=0 \u518d add \u8ddf\u76f4\u63a5 z.add(a) \u6709\u4ec0\u4e48\u533a\u522b\uff08<\/p>\n

    @LGA1150 \u4f60\u8fd9\u6709\u5e8f\u662f O(m log n)\uff0cm,n>4 \u7684\u8bdd\u8fd8\u4e0d\u5982\u96c6\u5408\u5462\u2026\u2026
    \u6709\u5e8f\u7684\u60c5\u51b5\u4e0b\u6700\u4f18\u5e94\u662f\u4eff\u5f52\u5e76\u6392\u5e8f\u7684\u53cc\u6307\u9488\u79fb\u52a8 <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : youhuo <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6765\u5b66\u4e60 \u5b66\u4e60 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u4e0d\u77e5\u9053\u6709\u6ca1\u6709\u66f4\u597d\u7684\u5199\u6cd5 \u8cc7\u6df1\u5927\u4f6c …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/426585"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=426585"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/426585\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=426585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=426585"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=426585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}