{"id":23,"date":"2022-11-25T14:22:00","date_gmt":"2022-11-25T06:22:00","guid":{"rendered":"https:\/\/zqy.ac.cn\/?p=23"},"modified":"2022-11-25T14:22:00","modified_gmt":"2022-11-25T06:22:00","slug":"%e7%8f%82%e6%9c%b5%e8%8e%89%e6%a0%91","status":"publish","type":"post","link":"https:\/\/acosx.top\/?p=23","title":{"rendered":"\u73c2\u6735\u8389\u6811"},"content":{"rendered":"<pre><code class=\"language-cpp\">#include&lt;bits\/stdc++.h&gt;\nusing namespace std;\n\nstruct node{ \/\/ \u8282\u70b9\n    long long l,r; \/\/ \u4ece l \u5230 r\n    mutable long long v; \/\/ \u503c\u662fv\n    node(long long l,long long r,long long v):l(l),r(r),v(v){}; \/\/ \u6784\u9020\u51fd\u6570\n    bool operator&lt;(const node &amp;n)const {return l &lt; n.l;} \/\/ \u91cd\u8f7d\u5c0f\u4e8e\u53f7,\u5de6\u7aef\u70b9\u5c0f\u7684\u5c0f\n};\n\nset&lt;node&gt; s; \/\/ set\u5b58\u50a8\n\nauto split(long long pos){\n    auto it = s.lower_bound(node(pos,0,0)); \/\/ \u627e\u5230\u7b2c\u4e00\u4e2a\u5de6\u7aef\u70b9\u5927\u4e8e\u7b49\u4e8epos\u7684\u8282\u70b9\n    if(it != s.end() &amp;&amp; it-&gt;l == pos)return it; \/\/ \u5982\u679c\u627e\u5230\u7684\u8282\u70b9\u5de6\u7aef\u70b9\u7b49\u4e8epos,\u76f4\u63a5\u8fd4\u56de\n    it--; \/\/ \u5426\u5219\u627e\u5230\u7684\u8282\u70b9\u5de6\u7aef\u70b9\u5927\u4e8epos,\u6240\u4ee5\u8981\u627e\u5230\u7684\u8282\u70b9\u662fit\u7684\u524d\u4e00\u4e2a\u8282\u70b9\n    long long l = it-&gt;l,r = it-&gt;r,v = it-&gt;v; \/\/ \u4fdd\u5b58\u627e\u5230\u7684\u8282\u70b9\u7684\u5de6\u7aef\u70b9,\u53f3\u7aef\u70b9,\u503c\n    s.erase(it); \/\/ \u5220\u9664\u627e\u5230\u7684\u8282\u70b9\n    s.insert(node(l,pos-1,v)); \/\/ \u63d2\u5165\u5de6\u7aef\u70b9\u5230pos-1\u7684\u8282\u70b9\n    return s.insert(node(pos,r,v)).first; \/\/ \u63d2\u5165pos\u5230\u53f3\u7aef\u70b9\u7684\u8282\u70b9,\u5e76\u8fd4\u56depos\u5230\u53f3\u7aef\u70b9\u7684\u8282\u70b9\u7684\u8fed\u4ee3\u5668\n}\n\nvoid assign(long long l,long long r,long long v){ \/\/ \u533a\u95f4\u8d4b\u503c\n    auto end = split(r+1),begin = split(l); \/\/ \u627e\u5230\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u548c\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\n    s.erase(begin,end); \/\/ \u5220\u9664\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u5230\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\n    s.insert(node(l,r,v)); \/\/ \u63d2\u5165\u5de6\u7aef\u70b9\u4e3al,\u53f3\u7aef\u70b9\u4e3ar,\u503c\u4e3av\u7684\u8282\u70b9\n}\n\nvoid add(long long l,long long r,long long v){ \/\/ \u533a\u95f4\u52a0\u503c\n    auto end = split(r+1),begin = split(l); \/\/ \u627e\u5230\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u548c\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\n    for(auto it = begin;it != end;it++)it-&gt;v += v; \/\/ \u5bf9\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u5230\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\u7684\u503c\u52a0v\n}\n\nlong long sum(long long l,long long r){ \/\/ \u533a\u95f4\u6c42\u548c\n    long long ans = 0;\n    auto end = split(r+1),begin = split(l); \/\/ \u627e\u5230\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u548c\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\n    for(auto it = begin;it != end;it++)ans += it-&gt;v; \/\/ \u5bf9\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u5230\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\u7684\u503c\u6c42\u548c\n    return ans;\n}\n\nlong long getNthbig(long long l,long long r,long long k){ \/\/ \u533a\u95f4\u7b2ck\u5927(\u6570\u5b57\u76f8\u540c\u7b97\u4e00\u4e2a)\n    set&lt;int&gt; st; \/\/ set\u5b58\u50a8\n    auto end = split(r+1),begin = split(l); \/\/ \u627e\u5230\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u548c\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\n    for(auto it = begin;it != end;it++){\n        st.insert(it-&gt;v); \/\/ \u5c06\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u5230\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\u7684\u503c\u63d2\u5165set\n        if(st.size() == k)return *--st.end(); \/\/ \u5982\u679cset\u7684\u5927\u5c0f\u7b49\u4e8ek,\u8fd4\u56deset\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\n    }\n    return -1; \/\/ \u5426\u5219\u8fd4\u56de-1\n}\n\nlong long getNth(long long l,long long r,long long k){ \/\/ \u533a\u95f4\u7b2ck\u5927(\u6570\u5b57\u76f8\u540c\u7b97\u591a\u4e2a)\n    \/\/ auto end = split(r+1);\n    \/\/ vector&lt;pair&lt;int,int&gt; &gt; v; \/\/ vector\u5b58\u50a8\n    \/\/ for(auto it = split(l);it != end;it++){\n    \/\/  v.push_back(make_pair(it-&gt;v,it-&gt;r-it-&gt;l+1)); \/\/ \u5c06\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u5230\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\u7684\u503c\u548c\u533a\u95f4\u957f\u5ea6\u63d2\u5165vector\n    \/\/ }\n    \/\/ sort(v.begin(),v.end()); \/\/ \u6392\u5e8f\n    \/\/ for(auto it:v){\n    \/\/  if(k &lt;= it.second)return it.first; \/\/ \u5982\u679ck\u5c0f\u4e8e\u7b49\u4e8e\u533a\u95f4\u957f\u5ea6,\u8fd4\u56de\u503c\n    \/\/  k -= it.second; \/\/ \u5426\u5219k\u51cf\u53bb\u533a\u95f4\u957f\u5ea6\n    \/\/ }\n    auto end = split(r+1);\n    for(auto it = split(l);it != end;it++){\n        if(k &lt;= it-&gt;r-it-&gt;l+1)return it-&gt;v; \/\/ \u5982\u679ck\u5c0f\u4e8e\u7b49\u4e8e\u533a\u95f4\u957f\u5ea6,\u8fd4\u56de\u503c\n        k -= it-&gt;r-it-&gt;l+1; \/\/ \u5426\u5219k\u51cf\u53bb\u533a\u95f4\u957f\u5ea6\n    }\n}\n\nlong long ksm(long long a,long long b,long long mod){ \/\/ \u5feb\u901f\u5e42\n    if(b == 1)return a;\n    if(b % 2 == 0)return ksm(a,b\/2,mod) * ksm(a,b\/2,mod) % mod;\n    return ksm(a,b\/2,mod) * ksm(a,b\/2,mod) % mod * a % mod;\n}\n\nlong long Multiksm(long long l,long long r,long long x,long long y){\n    long long ans = 0;\n    auto end = split(r+1),begin = split(l); \/\/ \u627e\u5230\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u548c\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\n    for(auto it = begin;it != end;it++){\n        ans += ksm(it-&gt;v,x,y) * (it-&gt;r - it-&gt;l + 1); \/\/ \u5bf9\u5de6\u7aef\u70b9\u4e3al\u7684\u8282\u70b9\u5230\u53f3\u7aef\u70b9\u4e3ar+1\u7684\u8282\u70b9\u7684\u503c\u6c42\u548c\n        ans %= y;\n    }\n    return ans;\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>#include&lt;bits\/stdc++.h&gt; using namespace std; stru&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-23","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/acosx.top\/index.php?rest_route=\/wp\/v2\/posts\/23","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/acosx.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/acosx.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/acosx.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/acosx.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=23"}],"version-history":[{"count":0,"href":"https:\/\/acosx.top\/index.php?rest_route=\/wp\/v2\/posts\/23\/revisions"}],"wp:attachment":[{"href":"https:\/\/acosx.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=23"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/acosx.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=23"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/acosx.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=23"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}