結果
問題 | No.2028 Even Choice |
ユーザー |
|
提出日時 | 2025-01-10 02:54:57 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 4,527 bytes |
コンパイル時間 | 9,979 ms |
コンパイル使用メモリ | 332,612 KB |
実行使用メモリ | 14,332 KB |
最終ジャッジ日時 | 2025-01-10 02:55:12 |
合計ジャッジ時間 | 14,390 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 23 RE * 5 |
ソースコード
#include<bits/stdc++.h>#include<atcoder/all>using namespace std;namespace my{#define LL(...) ll __VA_ARGS__;lin(__VA_ARGS__)#define VL(n,...) vec<ll>__VA_ARGS__;setsize({n},__VA_ARGS__);lin(__VA_ARGS__)#define FO(n) for(ll ij=n;ij-->0;)#define FOR(i,...) for(auto[i,i##stop,i##step]=range(0,__VA_ARGS__);i<i##stop;i+=i##step)#define fo(i,...) FO##__VA_OPT__(R)(i __VA_OPT__(,__VA_ARGS__))#define of(i,...) for(auto[i,i##stop,i##step]=range(1,__VA_ARGS__);i>=i##stop;i+=i##step)#define fe(a,i,...) for(auto&&__VA_OPT__([)i __VA_OPT__(,__VA_ARGS__]):a)#define single_testcase void solve();}int main(){my::io();my::solve();}namespace my{void io(){cin.tie(nullptr)->sync_with_stdio(0);cout<<fixed<<setprecision(15);}using ll=long long;constexpr auto range(bool s,auto...a){array<ll,3>r{0,0,1};ll I=0;((r[I++]=a),...);if(!s&&I==1)swap(r[0],r[1]);r[0]-=s;if(s)r[2]*=-1;return r;}constexpr char newline=10;constexpr char space=32;bool amin(auto&a,const auto&b){return a>b?a=b,1:0;}template<class...A>ostream&operator<<(ostream&o,const tuple<A...>&t){apply([&](const auto&...a){ll i=sizeof...(a);(((o<<a<<string(--i>0,space))),...);},t);return o;}template<class T>ostream&operator<<(ostream&o,const multiset<T>&s){fe(s,e)o<<e<<string(&e!=&*s.rbegin(),space);return o;}template<class T>struct multiset:std::multiset<T>{multiset(const initializer_list<T>&a={}){fe(a,e)this->emplace(e);}multiset(const vector<T>&a){fe(a,e)this->emplace(e);}};template<class V>concept vectorial=is_base_of_v<vector<typename V::value_type>,V>;template<class T>struct vec_attr{using core_type=T;static constexpr int d=0;};template<vectorial V>struct vec_attr<V>{using core_type=typename vec_attr<typename V::value_type>::core_type;static constexpr int d=vec_attr<typenameV::value_type>::d+1;};template<class T>using core_t=vec_attr<T>::core_type;template<class V>istream&operator>>(istream&i,vector<V>&v){fe(v,e)i>>e;return i;}template<class V>ostream&operator<<(ostream&o,const vector<V>&v){fe(v,e)o<<e<<string(&e!=&v.back(),vectorial<V>?newline:space);return o;}template<class V>struct vec:vector<V>{using vector<V>::vector;vec(const vector<V>&v){vector<V>::operator=(v);}template<class...A>requires(sizeof...(A)>=3)vec(A...a){const ll n=sizeof...(a)-1;ll s[n];ll i=0;((i<n?s[i++]=a:0),...);*this=make_vec(s,get<n>(tuple{a...}));}template<class T,ll n,ll i=0>static auto make_vec(const ll(&s)[n],T x){if constexpr(i==n-1)return vec<T>(s[i],x);else{auto X=make_vec<T,n,i+1>(s,x);return vec<decltype(X)>(s[i],X);}}vec&operator^=(const vec&u){this->insert(this->end(),u.begin(),u.end());return*this;}vec operator^(const vec&u)const{return vec{*this}^=u;}vec&operator+=(const vec&u){vec&v=*this;fo(i,v.size())v[i]+=u[i];return v;}vec&operator-=(const vec&u){vec&v=*this;fo(i,v.size())v[i]-=u[i];return v;}vec operator+(const vec&u)const{return vec{*this}+=u;}vec operator-(const vec&u)const{return vec{*this}-=u;}vec&operator++(){fe(*this,e)++e;return*this;}vec&operator--(){fe(*this,e)--e;return*this;}vec operator-()const{vec v=*this;fe(v,e)e=-e;return v;}};template<ll d,class T>struct dvec_helper{using type=vec<typename dvec_helper<d-1,T>::type>;};template<class T>struct dvec_helper<0,T>{using type=T;};template<ll d,class T>using dvec=typename dvec_helper<d,T>::type;template<class...A>requires(sizeof...(A)>=2)vec(A...a)->vec<dvec<sizeof...(a)-2,remove_reference_t<decltype(get<sizeof...(a)-1>(declval<tuple<A...>>()))>>>;vec(ll)->vec<ll>;template<ll n,class...A>void setsize(const ll(&l)[n],A&...a){((a=vec<void*>::make_vec(l,core_t<A>{})),...);}void lin(auto&...a){(cin>>...>>a);}template<class T>struct kth_multiset{ll K;multiset<T>pre,suf;kth_multiset(ll K):K(K){}void emplace(T x,const auto&add,const auto&del){if((ll)pre.size()<K){pre.emplace(x);add(x);return;}auto p=prev(pre.end());if(x>=*p){suf.emplace(x);return;}suf.emplace(*p);del(*p);pre.erase(p);pre.emplace(x);add(x);}friend ostream&operator<<(ostream&o,const kth_multiset&s){return o<<s.pre<<": "<<s.suf;}};template<char c=space>void pp(const auto&...a){ll n=sizeof...(a);((cout<<a<<string(--n>0,c)),...);cout<<newline;}single_testcasevoid solve(){LL(N,K);VL(N,a);a=-a;ll su=0;auto add=[&](ll x){su+=x;};auto del=[&](ll x){su-=x;};kth_multiset<ll>st(K-1);ll ans=0;of(i,N,1){if(i&1)amin(ans,su+a[i]);st.emplace(a[i],add,del);}pp(-ans);}}