{"id":2588,"date":"2022-04-04T20:44:21","date_gmt":"2022-04-04T12:44:21","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=2588"},"modified":"2022-04-04T21:32:22","modified_gmt":"2022-04-04T13:32:22","slug":"%e7%ae%97%e6%b3%95%e5%85%a5%e9%97%a8%e7%ac%ac%e5%8d%81%e5%a4%a9","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=2588","title":{"rendered":"\u7b97\u6cd5\u5165\u95e8\u7b2c\u5341\u5929"},"content":{"rendered":"\n

21. \u5408\u5e76\u4e24\u4e2a\u6709\u5e8f\u94fe\u8868<\/a><\/p>\n\n\n\n

\u9012\u5f52\u89e3\u6cd5<\/p>\n\n\n\n

\/**\n * Question21\n\n 21. \u5408\u5e76\u4e24\u4e2a\u6709\u5e8f\u94fe\u8868\n \u5c06\u4e24\u4e2a\u5347\u5e8f\u94fe\u8868\u5408\u5e76\u4e3a\u4e00\u4e2a\u65b0\u7684 \u5347\u5e8f \u94fe\u8868\u5e76\u8fd4\u56de\u3002\u65b0\u94fe\u8868\u662f\u901a\u8fc7\u62fc\u63a5\u7ed9\u5b9a\u7684\u4e24\u4e2a\u94fe\u8868\u7684\u6240\u6709\u8282\u70b9\u7ec4\u6210\u7684\u3002\n\n\n\n \u793a\u4f8b 1\uff1a\n\n\n \u8f93\u5165\uff1al1 = [1,2,4], l2 = [1,3,4]\n \u8f93\u51fa\uff1a[1,1,2,3,4,4]\n \u793a\u4f8b 2\uff1a\n\n \u8f93\u5165\uff1al1 = [], l2 = []\n \u8f93\u51fa\uff1a[]\n \u793a\u4f8b 3\uff1a\n\n \u8f93\u5165\uff1al1 = [], l2 = [0]\n \u8f93\u51fa\uff1a[0]\n\n\n \u63d0\u793a\uff1a\n\n \u4e24\u4e2a\u94fe\u8868\u7684\u8282\u70b9\u6570\u76ee\u8303\u56f4\u662f [0, 50]\n -100 <= Node.val <= 100\n l1 \u548c l2 \u5747\u6309 \u975e\u9012\u51cf\u987a\u5e8f \u6392\u5217\n\n\n *\n * <\/em>@author <\/em><\/strong>zeroheart\n * <\/em>@since <\/em><\/strong>2022\/4\/4\n *\/\n<\/em>public class Question21 {\n    public ListNode mergeTwoLists(ListNode list1, ListNode list2) {\n        if(list1==null){\n            return list2;\n        }\n        if(list2==null){\n            return list1;\n        }\n        if(list1.val < list2.val){\n            list1.next = mergeTwoLists(list1.next, list2);\n            return list1;\n        }else{\n            list2.next = mergeTwoLists(list1,list2.next);\n            return list2;\n        }\n    }\n\n\n}\n<\/pre>\n\n\n\n
206. \u53cd\u8f6c\u94fe\u8868<\/a><\/p>\n\n\n\n
\/**
<\/em> * Question206
<\/em> 206. \u53cd\u8f6c\u94fe\u8868
<\/em> \u7ed9\u4f60\u5355\u94fe\u8868\u7684\u5934\u8282\u70b9 head \uff0c\u8bf7\u4f60\u53cd\u8f6c\u94fe\u8868\uff0c\u5e76\u8fd4\u56de\u53cd\u8f6c\u540e\u7684\u94fe\u8868\u3002
<\/em>
<\/em>
<\/em> \u793a\u4f8b 1\uff1a
<\/em>
<\/em>
<\/em> \u8f93\u5165\uff1ahead = [1,2,3,4,5]
<\/em> \u8f93\u51fa\uff1a[5,4,3,2,1]
<\/em> \u793a\u4f8b 2\uff1a
<\/em>
<\/em>
<\/em> \u8f93\u5165\uff1ahead = [1,2]
<\/em> \u8f93\u51fa\uff1a[2,1]
<\/em> \u793a\u4f8b 3\uff1a
<\/em>
<\/em> \u8f93\u5165\uff1ahead = []
<\/em> \u8f93\u51fa\uff1a[]
<\/em>
<\/em>
<\/em> \u63d0\u793a\uff1a
<\/em>
<\/em> \u94fe\u8868\u4e2d\u8282\u70b9\u7684\u6570\u76ee\u8303\u56f4\u662f [0, 5000]
<\/em> -5000 <= Node.val <= 5000
<\/em>
<\/em> *
<\/em> * <\/em>@author <\/em><\/strong>zeroheart
<\/em> * <\/em>@since <\/em><\/strong>2022\/4\/4
<\/em> *\/
<\/em>public class Question206 {
    public ListNode reverseList(ListNode head) {
        if(head==null)return head;

        \/\/ \u8fd9\u9898\u653e\u5728\u9012\u5f52\u4e0b\u9762\uff0c\u4e0d\u8fc7\u9012\u5f52\u65b9\u6cd5\u4e0d\u5bb9\u6613\u7406\u89e3\uff0c\u6539\u6210\u7c7b\u4f3c\u53cc\u6307\u9488\u7684\u505a\u6cd5
        ListNode pre = null;
        while (head!=null){
            ListNode tmp = head.next; \/\/ \u4fdd\u5b58\u4e0b\u4e00\u4e2a\u8282\u70b9
            head.next = pre;
            pre = head;
            head = tmp;
        }
        return pre;
    }

}<\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
21. \u5408\u5e76\u4e24\u4e2a\u6709\u5e8f\u94fe\u8868 \u9012\u5f52\u89e3\u6cd5 \/** * Question21 21. \u5408\u5e76\u4e24\u4e2a\u6709\u5e8f\u94fe\u8868 \u5c06\u4e24\u4e2a\u5347\u5e8f\u94fe\u8868 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[155],"tags":[172],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2588"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2588"}],"version-history":[{"count":8,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2588\/revisions"}],"predecessor-version":[{"id":2596,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2588\/revisions\/2596"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}