{"id":257,"date":"2010-05-21T19:40:00","date_gmt":"2010-05-21T11:40:00","guid":{"rendered":"http:\/\/localhost\/?p=257"},"modified":"2010-05-21T19:40:00","modified_gmt":"2010-05-21T11:40:00","slug":"sdoi2009_hh_necklace","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/wjmzbmr\/?p=257","title":{"rendered":"[SDOI2009]HH\u7684\u9879\u94fe"},"content":{"rendered":"\n<p>[SDOI2009]HH\u7684\u9879\u94fe<\/p>\n<p>Time Limit:4000MS&#160; Memory Limit:65536K<br \/>Total Submit:4 Accepted:2 <br \/>Case Time Limit:1000MS<\/p>\n<p><strong>Description <\/strong><\/p>\n<p> HH\u6709\u4e00\u4e32\u7531\u5404\u79cd\u6f02\u4eae\u7684\u8d1d\u58f3\u7ec4\u6210\u7684\u9879\u94fe\u3002HH\u76f8\u4fe1\u4e0d\u540c\u7684\u8d1d\u58f3\u4f1a\u5e26\u6765\u597d\u8fd0\uff0c\u6240\u4ee5\u6bcf\u6b21\u6563\u6b65 <br \/>\u5b8c\u540e\uff0c\u4ed6\u90fd\u4f1a\u968f\u610f\u53d6\u51fa\u4e00\u6bb5\u8d1d\u58f3\uff0c\u601d\u8003\u5b83\u4eec\u6240\u8868\u8fbe\u7684\u542b\u4e49\u3002HH\u4e0d\u65ad\u5730\u6536\u96c6\u65b0\u7684\u8d1d\u58f3\uff0c\u56e0\u6b64\uff0c <br \/>\u4ed6\u7684\u9879\u94fe\u53d8\u5f97\u8d8a\u6765\u8d8a\u957f\u3002\u6709\u4e00\u5929\uff0c\u4ed6\u7a81\u7136\u63d0\u51fa\u4e86\u4e00\u4e2a\u95ee\u9898\uff1a\u67d0\u4e00\u6bb5\u8d1d\u58f3\u4e2d\uff0c\u5305\u542b\u4e86\u591a\u5c11\u79cd\u4e0d\u540c <br \/>\u7684\u8d1d\u58f3\uff1f\u8fd9\u4e2a\u95ee\u9898\u5f88\u96be\u56de\u7b54\u3002\u3002\u3002\u56e0\u4e3a\u9879\u94fe\u5b9e\u5728\u662f\u592a\u957f\u4e86\u3002\u4e8e\u662f\uff0c\u4ed6\u53ea\u597d\u6c42\u52a9\u777f\u667a\u7684\u4f60\uff0c\u6765\u89e3 <br \/>\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002 <\/p>\n<p><strong>Input <\/strong><\/p>\n<p> \u7b2c\u4e00\u884c\uff1a\u4e00\u4e2a\u6574\u6570N\uff0c\u8868\u793a\u9879\u94fe\u7684\u957f\u5ea6\u3002 <br \/>\u7b2c\u4e8c\u884c\uff1aN\u4e2a\u6574\u6570\uff0c\u8868\u793a\u4f9d\u6b21\u8868\u793a\u9879\u94fe\u4e2d\u8d1d\u58f3\u7684\u7f16\u53f7\uff08\u7f16\u53f7\u4e3a0\u52301000000\u4e4b\u95f4\u7684\u6574\u6570\uff09\u3002 <br \/>\u7b2c\u4e09\u884c\uff1a\u4e00\u4e2a\u6574\u6570M\uff0c\u8868\u793aHH\u8be2\u95ee\u7684\u4e2a\u6570\u3002 <br \/>\u63a5\u4e0b\u6765M\u884c\uff1a\u6bcf\u884c\u4e24\u4e2a\u6574\u6570\uff0cL\u548cR\uff081 \u2264 L \u2264 R \u2264 N\uff09\uff0c\u8868\u793a\u8be2\u95ee\u7684\u533a\u95f4\u3002<\/p>\n<p><strong>Output <\/strong><\/p>\n<p>M\u884c\uff0c\u6bcf\u884c\u4e00\u4e2a\u6574\u6570\uff0c\u4f9d\u6b21\u8868\u793a\u8be2\u95ee\u5bf9\u5e94\u7684\u7b54\u6848\u3002<\/p>\n<p><strong>Sample Input <\/strong><\/p>\n<p>6<br \/>1 2 3 4 3 5<br \/>3<br \/>1 2 <br \/>3 5<br \/>2 6<\/p>\n<p><strong>Sample Output <\/strong><\/p>\n<p>2<br \/>2<br \/>4<\/p>\n<p><strong>Hint <\/strong><\/p>\n<p>\u5bf9\u4e8e20%\u7684\u6570\u636e\uff0cN \u2264 100\uff0cM \u2264 1000\uff1b <br \/>\u5bf9\u4e8e40%\u7684\u6570\u636e\uff0cN \u2264 3000\uff0cM \u2264 200000\uff1b <br \/>\u5bf9\u4e8e100%\u7684\u6570\u636e\uff0cN \u2264 50000\uff0cM \u2264 200000\u3002<\/p>\n<p><strong>Source <\/strong><\/p>\n<p> Day2<br \/>\u9996\u5148\u80af\u5b9a\u5728\u7ebf\u7b97\u6cd5\u662f\u641e\u4e0d\u51fa\u6765\u7684\u518f\uff0c\u6240\u4ee5\u79bb\u7ebf\u5904\u7406\u3002\u5bf9\u6bcf\u4e2a\u4f4d\u7f6e\u7ef4\u62a4\u5230\u5f53\u524d\u8003\u8651\u5230\u70b9\u6709\u591a\u5c11\u4e0d\u540c\u70b9\u4e2a\u3002\u7136\u540e\u6bcf\u6b21\u8003\u8651\u7b2ci\u4e2a\u6570\u65f6\uff0c\u8bbeAi\u4e0a\u4e00\u6b21\u51fa\u73b0\u5728\u7b2cp\u4e2a\u3002\u3002\u90a3\u4e48p+1-&gt;i\u7684\u7b54\u6848\u5168\u90e8+1\uff0c\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u7528\u6811\u72b6\u6570\u7ec4\u7ef4\u62a4\u3002\u3002PS\u3002\u3002\u628a\u6811\u72b6\u6570\u7ec4\u5199\u6210\u7c7b\u7684\u5f62\u5f0f\u611f\u89c9\u771f\u723d\u554a\u3002\u3002<br \/>Code\uff1a<\/p>\n<p>#include &lt;vector&gt;<br \/>#include &lt;algorithm&gt;<br \/>#include &lt;utility&gt;<br \/>#include &lt;iostream&gt;<br \/>#include &lt;cstdio&gt;<br \/>#include &lt;cmath&gt;<br \/>#include &lt;cstdlib&gt;<br \/>#define For(i,l,r) for(int i=l;i&lt;=r;i++)<br \/>#define rep(i,n) for(int i=0;i&lt;n;i++)<br \/>#define pb push_back<br \/>const int inf=~0U&gt;&gt;2,maxn=50000+2,maxm=200000,maxd=1000000+1;<br \/>using namespace std;<br \/>typedef pair&lt;int,int&gt; ii;<br \/>int Ans[maxm],A[maxn],P[maxd],n,m;<br \/>vector&lt;ii&gt; E[maxn];<br \/>struct TArray<br \/>{<br \/>    int A[maxn],n;<br \/>    void Add(int p,int d)<br \/>    {<br \/>        for(;p&lt;=n;p+=(p&amp;-p))A[p]+=d;<br \/>    }<br \/>    void Add(int l,int r,int d)<br \/>    {<br \/>        Add(l,d);Add(r+1,-d);<br \/>    }<br \/>    void Set(int _n){n=_n;For(i,0,n)A[i]=0;}<br \/>    int operator[](int i)<br \/>    {<br \/>        int ret=0;if(!i)return inf;<br \/>        for(;i;i-=(i&amp;-i))ret+=A[i];<br \/>        return ret;<br \/>    }<br \/>}T;<br \/>int main()<br \/>{<br \/>    \/\/freopen(&quot;in&quot;,&quot;r&quot;,stdin);<br \/>    scanf(&quot;%d&quot;,&amp;n);For(i,1,n)scanf(&quot;%d&quot;,A+i),P[A[i]]=0;<br \/>    scanf(&quot;%d&quot;,&amp;m);int l,r;rep(i,m)scanf(&quot;%d%d&quot;,&amp;l,&amp;r),E[r].pb(ii(l,i));<br \/>    T.Set(n);<br \/>    For(i,1,n)<br \/>    {<br \/>        int t=A[i],p=P[t]+1;P[t]=i;<br \/>        T.Add(p,i,1);<br \/>        rep(j,E[i].size())Ans[E[i][j].second]=T[E[i][j].first];<br \/>    }<br \/>    rep(i,m)printf(&quot;%dn&quot;,Ans[i]);<br \/>}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[SDOI2009]HH\u7684\u9879\u94fe Time Limit:4000MS&#160; Memory Limit:65536KTotal Submit:4 Accepted:2 Case Time Limit:1000MS Description HH\u6709\u4e00\u4e32\u7531\u5404\u79cd\u6f02\u4eae\u7684\u8d1d\u58f3\u7ec4\u6210\u7684\u9879\u94fe\u3002HH\u76f8\u4fe1\u4e0d\u540c\u7684\u8d1d\u58f3\u4f1a\u5e26\u6765\u597d\u8fd0\uff0c\u6240\u4ee5\u6bcf\u6b21\u6563\u6b65 \u5b8c\u540e\uff0c\u4ed6\u90fd\u4f1a\u968f\u610f\u53d6\u51fa\u4e00\u6bb5\u8d1d\u58f3\uff0c\u601d\u8003\u5b83\u4eec\u6240\u8868\u8fbe\u7684\u542b\u4e49\u3002HH\u4e0d\u65ad\u5730\u6536\u96c6\u65b0\u7684\u8d1d\u58f3\uff0c\u56e0\u6b64\uff0c \u4ed6\u7684\u9879\u94fe\u53d8\u5f97\u8d8a\u6765\u8d8a\u957f\u3002\u6709\u4e00\u5929\uff0c\u4ed6\u7a81\u7136\u63d0\u51fa\u4e86\u4e00\u4e2a\u95ee\u9898\uff1a\u67d0\u4e00\u6bb5\u8d1d\u58f3\u4e2d\uff0c\u5305\u542b\u4e86\u591a\u5c11\u79cd\u4e0d\u540c \u7684\u8d1d\u58f3\uff1f\u8fd9\u4e2a\u95ee\u9898\u5f88\u96be\u56de\u7b54\u3002\u3002\u3002\u56e0\u4e3a\u9879\u94fe\u5b9e\u5728\u662f\u592a\u957f\u4e86\u3002\u4e8e\u662f\uff0c\u4ed6\u53ea\u597d\u6c42\u52a9\u777f\u667a\u7684\u4f60\uff0c\u6765\u89e3 \u51b3\u8fd9\u4e2a\u95ee\u9898\u3002 Input \u7b2c\u4e00\u884c\uff1a\u4e00\u4e2a\u6574\u6570N\uff0c\u8868\u793a\u9879\u94fe\u7684\u957f\u5ea6\u3002 \u7b2c\u4e8c\u884c\uff1aN\u4e2a\u6574\u6570\uff0c\u8868\u793a\u4f9d\u6b21\u8868\u793a\u9879\u94fe\u4e2d\u8d1d\u58f3\u7684\u7f16\u53f7\uff08\u7f16\u53f7\u4e3a0\u52301000000\u4e4b\u95f4\u7684\u6574\u6570\uff09\u3002 \u7b2c\u4e09\u884c\uff1a\u4e00\u4e2a\u6574\u6570M\uff0c\u8868\u793aHH\u8be2\u95ee\u7684\u4e2a\u6570\u3002 \u63a5\u4e0b\u6765M\u884c\uff1a\u6bcf\u884c\u4e24\u4e2a\u6574\u6570\uff0cL\u548cR\uff081 \u2264 L \u2264 R \u2264 N\uff09\uff0c\u8868\u793a\u8be2\u95ee\u7684\u533a\u95f4\u3002 Output M\u884c\uff0c\u6bcf\u884c\u4e00\u4e2a\u6574\u6570\uff0c\u4f9d\u6b21\u8868\u793a\u8be2\u95ee\u5bf9\u5e94\u7684\u7b54\u6848\u3002 Sample Input 61 2 3 4 3 531 2 3 52 6 Sample Output 224 Hint \u5bf9\u4e8e20%\u7684\u6570\u636e\uff0cN \u2264 100\uff0cM \u2264 1000\uff1b \u5bf9\u4e8e40%\u7684\u6570\u636e\uff0cN \u2264 3000\uff0cM \u2264 200000\uff1b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/257"}],"collection":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=257"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/257\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}