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\/>\n\u4e0b\u9762\u662f\u6240\u6709\u64cd\u4f5c\u4e2d\u6700\u590d\u6742\u7684\u64cd\u4f5c2\uff0c\u4e8b\u5b9e\u4e0a\u64cd\u4f5c2\u662f\u552f\u4e00\u4e00\u4e2a\u53ef\u80fd\u6539\u53d8\u5df2\u6709\u7ed3\u6784\u7684\u64cd\u4f5c\u3002<br \/>\n\u5bf9\u4e8e\u9700\u8981\u5220\u9664\u7684\u8282\u70b9\uff0c\u5b58\u5728\u4e09\u79cd\u60c5\u51b5\u3002<br \/>\n\u60c5\u51b5\u4e00\uff1a\u5b83\u662f\u4e00\u4e2a\u53f6\u8282\u70b9\u3002\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5355\u7eaf\u5730\u5220\u9664\u5b83\uff0c\u7136\u540e\u81ea\u5e95\u5411\u9876\u66f4\u65b0\u5b50\u6811\u5927\u5c0f\u3002<br \/>\n\u60c5\u51b5\u4e8c\uff1a\u5b83\u53ea\u6709\u4e00\u4e2a\u5b50\u8282\u70b9\u3002\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5355\u7eaf\u5730\u5220\u9664\u5b83\uff0c\u7136\u540e\u5c06\u5b83\u7684\u5b50\u6811\u63a5\u5728\u5b83\u7684\u7236\u8282\u70b9\uff0c\u7136\u540e\u81ea\u9876\u5411\u4e0a\u66f4\u65b0\u5b50\u6811\u5927\u5c0f\u3002<br \/>\n\u60c5\u51b5\u4e09\uff1a\u5b83\u65e2\u6709\u5de6\u8282\u70b9\u53c8\u6709\u53f3\u8282\u70b9\u3002\u8fd9\u79cd\u60c5\u51b5\u53ef\u80fd\u4f1a\u6bd4\u8f83\u590d\u6742\u3002\u9996\u5148\u6211\u4eec\u77e5\u9053\uff0c\u8fd9\u4e2a\u8282\u70b9\u5fc5\u7136\u6709\u524d\u9a71\/\u540e\u7ee7\u3002\u4e0d\u59a8\u5c06\u5b83\u7684\u5176\u4ed6\u90e8\u5206\u653e\u5728\u5b83\u7684\u540e\u7ee7\u4e0a\u3002\uff08\u524d\u9a71\u540c\u7406\u3002\uff09<br \/>\n\u8fd9\u65f6\u5019\u5206\u4e24\u7c7b\u8ba8\u8bba\u3002<br \/>\n\u5982\u679c\u5b83\u7684\u540e\u7ee7\u4e0d\u662f\u5b83\u7684\u53f3\u5b50\u8282\u70b9\uff0c\u90a3\u4e48\u53ef\u4ee5\u5c06\u5b83\u7684\u540e\u7ee7\u63a5\u5728\u5b83\u7684\u7236\u8282\u70b9\uff0c\u7136\u540e\u5c06\u5b83\u7684\u53f3\u5b50\u6811\u7684\u5176\u4ed6\u90e8\u5206\u4f5c\u4e3a\u5b83\u7684\u540e\u7ee7\u7684\u53f3\u5b50\u6811\u3002\u7136\u540e\u5c06\u5b83\u7684\u5de6\u5b50\u6811\u4f5c\u4e3a\u5b83\u7684\u540e\u7ee7\u7684\u5de6\u5b50\u6811\u3002<br \/>\n\u5426\u5219\uff0c\u6211\u4eec\u5c06\u5b83\u7684\u5de6\u8282\u70b9\u653e\u5728\u5b83\u7684\u540e\u7ee7\u7684\u5de6\u8282\u70b9\u5904\uff0c\u7136\u540e\u5c06\u5b83\u7684\u540e\u7ee7\u63a5\u5728\u5b83\u7684\u7236\u8282\u70b9\u3002<br \/>\n\u5bf9\u4e8e\u64cd\u4f5c9\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5728\u6bcf\u6b21\u66f4\u65b0\u7684\u65f6\u5019\u81ea\u9876\u5411\u4e0a\u8ba1\u7b97\u8d21\u732e\uff0c\u5b58\u50a8\u597d\u5373\u53ef\u76f4\u63a5\u5199\u51fa\u3002<br \/>\n\u4e8c\u53c9\u641c\u7d22\u6811\u662f\u5e73\u8861\u6811\u7684\u57fa\u7840\uff0c\u7531\u4e8e\u6ca1\u6709\u76f8\u5173\u6a21\u677f\u9898\uff0c\u6240\u4ee5\u6211\u4e5f\u4e0d\u592a\u786e\u5b9a\u6211\u7684\u4e8c\u53c9\u641c\u7d22\u6811\u6709\u6ca1\u6709\u5199\u6302\u3002\u8bf7\u5404\u4f4d\u591a\u591a\u6307\u6559\u3002<br \/>\n&nbsp;<\/p>\n<pre class=\"pure-highlightjs\"><code class=\"cpp\">#include&lt;iostream&gt;\r\n#include&lt;cstdio&gt;\r\nint st[100005],tp=0;\r\nstruct data{\r\n    int v;int fa;int ls;int rs;int sz;int cnt;\r\n}tr[100005];\r\nint rot=0,trt=0;\r\ninline int nwlc(){\r\n    return tp?st[tp--]:++trt;\r\n}\r\ninline void init(int X){\r\n    tr[X].cnt=tr[X].fa=tr[X].ls=tr[X].rs=tr[X].sz=tr[X].v=0;\r\n    st[++tp]=X;\r\n}\r\ninline void rnw(int X){\r\n    int P=X;\r\n    while(P){\r\n        tr[P].sz=tr[tr[P].ls].sz+tr[tr[P].rs].sz+tr[P].cnt;\r\n        P=tr[P].fa;\r\n    }\r\n}\r\ninline int nwpt(int V,int FA,int LS,int RS,int SZ){\r\n    if(!rot){\r\n        int P=1;trt=1;tp=0;rot=1;\r\n        tr[P]=(data){V,0,0,0,1,1};\r\n        return P;\r\n    }\r\n    int P=nwlc();\r\n    tr[FA].v&gt;V?tr[FA].ls=P:tr[FA].rs=P;\r\n    tr[P]=(data){V,FA,LS,RS,SZ,1};\r\n    return P;\r\n}\r\ninline int fndNm(int X){\r\n    int P=rot,FP=0;\r\n    while(P){\r\n        FP=P;\r\n        if(tr[P].v==X){\r\n            FP=P;\r\n            break;\r\n        }\r\n        P=X&lt;tr[P].v?tr[P].ls:tr[P].rs;\r\n    }\r\n    return FP;\r\n}\r\ninline int fndMx(int X){\r\n    int P=X,FP;\r\n    while(P){\r\n        FP=P;\r\n        P=tr[P].rs;\r\n    }\r\n    return FP;\r\n}\r\ninline int fndMn(int X){\r\n    int P=X,FP;\r\n    while(P){\r\n        FP=P;\r\n        P=tr[P].ls;\r\n    }\r\n    return FP;\r\n}\r\ninline int fndPre(int X){\r\n    if(tr[X].ls){\r\n        return fndMx(tr[X].ls);\r\n    }else{\r\n        int P=X,NP;\r\n        while(P){\r\n            NP=P;\r\n            P=tr[P].fa;\r\n            if(tr[P].rs==NP){\r\n                break;\r\n            }\r\n        }\r\n        return P;\r\n    }\r\n}\r\ninline int fndNxt(int X){\r\n    if(tr[X].rs){\r\n        return fndMn(tr[X].rs);\r\n    }else{\r\n        int P=X,NP;\r\n        while(P){\r\n            NP=P;\r\n            P=tr[P].fa;\r\n            if(tr[P].ls==NP){\r\n                break;\r\n            }\r\n        }\r\n        return P;\r\n    }\r\n}\r\ninline int fndPP(int X){\r\n    int MX=fndMx(rot);\r\n    if(X&lt;tr[MX].v){\r\n        return MX;\r\n    }\r\n\tint P=rot,FP=0;\r\n\twhile(P){\r\n\t\tFP=P;\r\n\t\tif(tr[P].v==X){\r\n\t\t\tFP=P;\r\n\t\t\tbreak;\r\n\t\t}else{\r\n\t\t\tif(tr[P].v&gt;X&amp;&amp;tr[tr[P].ls].v&lt;X){\r\n\t\t\t\tFP=P;\r\n\t\t\t\tbreak;\r\n\t\t\t}else if(tr[P].v&lt;X&amp;&amp;tr[tr[P].rs].v&gt;X){\r\n\t\t\t\tFP=tr[P].rs;\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\t\tP=X&lt;tr[P].v?tr[P].ls:tr[P].rs;\r\n\t}\r\n\treturn fndPre(FP);\r\n}\r\ninline int fndNN(int X){\r\n    int MN=fndMn(rot);\r\n    if(X&lt;tr[MN].v){\r\n        return MN;\r\n    }\r\n\tint P=rot,FP=0;\r\n\twhile(P){\r\n\t\tFP=P;\r\n\t\tif(tr[P].v==X){\r\n\t\t\tFP=P;\r\n\t\t\tbreak;\r\n\t\t}else{\r\n\t\t\tif(tr[P].v&gt;X&amp;&amp;tr[tr[P].ls].v&lt;X){\r\n\t\t\t\tFP=tr[P].ls;\r\n\t\t\t\tbreak;\r\n\t\t\t}else if(tr[P].v&lt;X&amp;&amp;tr[tr[P].rs].v&gt;X){\r\n\t\t\t\tFP=P;\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\t\tP=X&lt;tr[P].v?tr[P].ls:tr[P].rs;\r\n\t}\r\n\treturn fndNxt(FP);\r\n}\r\ninline void trIns(int X){\r\n    int P=rot,FP;\r\n    while(P){\r\n        FP=P;\r\n        if(tr[P].v==X){\r\n            ++tr[P].cnt;\r\n            rnw(P);\r\n            return;\r\n        }\r\n        P=(tr[P].v&gt;X)?tr[P].ls:tr[P].rs;\r\n    }\r\n    rnw(nwpt(X,FP,0,0,1));\r\n}\r\ninline void cnnctP(int FA,int X,int SN){\r\n    if(!SN){\r\n        return;\r\n    }\r\n    tr[SN].fa=FA;\r\n    tr[FA].ls==X?(tr[FA].ls=SN):(tr[FA].rs=SN);\r\n}\r\ninline void delP(int FA,int X,int SN){\r\n    (tr[X].cnt&gt;1)?--tr[X].cnt,cnnctP(FA,X,SN):cnnctP(FA,X,SN),init(X);\r\n    rnw(SN?SN:FA);\r\n}\r\ninline void trDel(int X){\r\n    if(!tr[X].ls&amp;&amp;!tr[X].rs){\r\n        delP(tr[X].fa,X,0);\r\n    }else if(tr[X].ls&amp;&amp;!tr[X].rs){\r\n        delP(tr[X].fa,X,tr[X].ls);\r\n    }else if(tr[X].rs&amp;&amp;!tr[X].ls){\r\n        delP(tr[X].fa,X,tr[X].rs);\r\n    }else{\r\n        if(tr[X].rs==fndNxt(X)){\r\n            tr[tr[X].ls].fa=tr[X].rs;\r\n            tr[tr[X].rs].ls=tr[X].ls;\r\n            delP(tr[X].fa,X,tr[X].rs);\r\n        }else{\r\n            int XN=fndNxt(X),LW;\r\n            LW=tr[XN].fa;\r\n            cnnctP(tr[XN].fa,XN,tr[XN].rs);\r\n            tr[XN].rs=tr[X].rs;\r\n            tr[tr[X].rs].fa=XN;\r\n            tr[XN].ls=tr[X].ls;\r\n            tr[tr[X].ls].fa=XN;\r\n            tr[X].rs=XN;\r\n            tr[XN].fa=X;\r\n            delP(tr[X].fa,X,XN);\r\n            rnw(LW);\r\n        }\r\n    }\r\n}\r\ninline int fndRnkN(int X){\r\n    int P=rot;\r\n    while(P){\r\n        if(X&lt;=tr[tr[P].ls].sz){\r\n            X-=tr[tr[P].ls].sz;\r\n            P=tr[P].ls;\r\n        }else if(X&lt;=tr[tr[P].ls].sz+tr[P].sz){\r\n            return P;\r\n        }else{\r\n            X-=(tr[tr[P].ls].sz+tr[P].cnt);\r\n            P=tr[P].rs;\r\n        }\r\n    }\r\n    return -1;\r\n}\r\n\r\ninline int fndRnkS(int X){\r\n    int P=rot,RT=0;\r\n    while(P){\r\n        P=(X&lt;tr[P].v)?tr[P].ls:tr[P].rs,RT+=tr[tr[P].ls].sz;\r\n    }\r\n    return RT;\r\n}\r\ninline void trPrnt(int X){\r\n    if(tr[X].ls){\r\n        trPrnt(tr[X].ls);\r\n    }\r\n    printf(\"%d \",tr[X].v);\r\n    if(tr[X].rs){\r\n        trPrnt(tr[X].rs);\r\n    }\r\n}\r\nint q;\r\nvoid init(){\r\n    scanf(\"%d\",&amp;q);\r\n    int op,x;\r\n    for(int i=1;i&lt;=q;++i){\r\n        scanf(\"%d%d\",&amp;op,&amp;x);\r\n        switch(op){\r\n            case 1: {\r\n                trIns(x);\r\n                break;\r\n            }\r\n            case 2: {\r\n                trDel(fndNm(x));\r\n                break;\r\n            }\r\n            case 3: {\r\n                printf(\"%d\\n\",fndRnkS(x));\r\n                break;\r\n            }\r\n            case 4:{\r\n                printf(\"%d\\n\",tr[fndRnkN(x)].v);\r\n                break;\r\n            }\r\n            case 5: {\r\n                printf(\"%d\\n\",tr[fndPP(x)].v);\r\n                break;\r\n            }\r\n            case 6: {\r\n                printf(\"%d\\n\",tr[fndNN(x)].v);\r\n                break;\r\n            }\r\n        }\r\n    }\r\n} \r\nint main(){\r\n    init();\r\n    return 0;\r\n}<\/code><\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e8c\u53c9\u641c\u7d22\u6811\u3002 \u4e8c\u53c9\u641c\u7d22\u6811\u662f\u4e00\u68f5\u4e8c\u53c9\u6811\u3002\u5bf9\u4e8e\u8fd9\u68f5\u6811\u4e0a\u7684\u4efb\u610f\u4e00\u4e2a\u8282\u70b9\uff0c\u53f3\u5b50\u6811\u4e2d\u7684\u6240\u6709\u8282\u70b9\u90fd\u5927\u4e8e\u5b83\uff1b\u5de6\u5b50\u6811\u4e2d\u7684\u6240\u6709\u8282 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/SmokeyDays.top\/wordpress\/2018\/12\/03\/%e4%ba%8c%e5%8f%89%e6%90%9c%e7%b4%a2%e6%a0%91\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201c\u4e8c\u53c9\u641c\u7d22\u6811\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[62,43,6],"tags":[],"_links":{"self":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/455"}],"collection":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/comments?post=455"}],"version-history":[{"count":1,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/455\/revisions"}],"predecessor-version":[{"id":456,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/455\/revisions\/456"}],"wp:attachment":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/media?parent=455"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/categories?post=455"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/tags?post=455"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}