結果
問題 | No.2139 K Consecutive Sushi |
ユーザー | tko919 |
提出日時 | 2022-12-03 00:26:47 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 48 ms / 2,000 ms |
コード長 | 6,483 bytes |
コンパイル時間 | 2,066 ms |
コンパイル使用メモリ | 210,472 KB |
実行使用メモリ | 22,400 KB |
最終ジャッジ日時 | 2024-05-05 19:21:41 |
合計ジャッジ時間 | 3,802 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 48 ms
22,400 KB |
testcase_04 | AC | 46 ms
22,272 KB |
testcase_05 | AC | 45 ms
22,144 KB |
testcase_06 | AC | 45 ms
22,272 KB |
testcase_07 | AC | 46 ms
22,272 KB |
testcase_08 | AC | 39 ms
22,144 KB |
testcase_09 | AC | 42 ms
22,144 KB |
testcase_10 | AC | 44 ms
22,400 KB |
testcase_11 | AC | 44 ms
22,272 KB |
testcase_12 | AC | 38 ms
22,272 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 1 ms
5,376 KB |
testcase_18 | AC | 1 ms
5,376 KB |
testcase_19 | AC | 1 ms
5,376 KB |
testcase_20 | AC | 1 ms
5,376 KB |
testcase_21 | AC | 1 ms
5,376 KB |
testcase_22 | AC | 1 ms
5,376 KB |
testcase_23 | AC | 5 ms
5,376 KB |
testcase_24 | AC | 15 ms
8,960 KB |
testcase_25 | AC | 32 ms
17,152 KB |
testcase_26 | AC | 6 ms
5,376 KB |
testcase_27 | AC | 13 ms
8,320 KB |
testcase_28 | AC | 13 ms
8,576 KB |
testcase_29 | AC | 7 ms
5,760 KB |
testcase_30 | AC | 18 ms
10,624 KB |
testcase_31 | AC | 40 ms
20,352 KB |
testcase_32 | AC | 8 ms
6,016 KB |
testcase_33 | AC | 43 ms
22,400 KB |
ソースコード
#line 1 "library/Template/template.hpp" #include <bits/stdc++.h> using namespace std; #define rep(i,a,b) for(int i=(int)(a);i<(int)(b);i++) #define ALL(v) (v).begin(),(v).end() using ll=long long int; const int inf = 0x3fffffff; const ll INF = 0x1fffffffffffffff; template<typename T>inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;} template<typename T>inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;} #line 2 "library/Utility/fastio.hpp" #include <unistd.h> class FastIO{ static constexpr int L=1<<16; char rdbuf[L]; int rdLeft=0,rdRight=0; inline void reload(){ int len=rdRight-rdLeft; memmove(rdbuf,rdbuf+rdLeft,len); rdLeft=0,rdRight=len; rdRight+=fread(rdbuf+len,1,L-len,stdin); } inline bool skip(){ for(;;){ while(rdLeft!=rdRight and rdbuf[rdLeft]<=' ')rdLeft++; if(rdLeft==rdRight){ reload(); if(rdLeft==rdRight)return false; } else break; } return true; } template<typename T,enable_if_t<is_integral<T>::value,int> =0>inline bool _read(T& x){ if(!skip())return false; if(rdLeft+20>=rdRight)reload(); bool neg=false; if(rdbuf[rdLeft]=='-'){ neg=true; rdLeft++; } x=0; while(rdbuf[rdLeft]>='0' and rdLeft<rdRight){ x=x*10+(neg?-(rdbuf[rdLeft++]^48):(rdbuf[rdLeft++]^48)); } return true; } template<typename T,enable_if_t<is_floating_point<T>::value,int> =0>inline bool _read(T& x){ if(!skip())return false; if(rdLeft+20>=rdRight)reload(); bool neg=false; if(rdbuf[rdLeft]=='-'){ neg=true; rdLeft++; } x=0; while(rdbuf[rdLeft]>='0' and rdbuf[rdLeft]<='9' and rdLeft<rdRight){ x=x*10+(rdbuf[rdLeft++]^48); } if(rdbuf[rdLeft]!='.')return true; rdLeft++; T base=.1; while(rdbuf[rdLeft]>='0' and rdbuf[rdLeft]<='9' and rdLeft<rdRight){ x+=base*(rdbuf[rdLeft++]^48); base*=.1; } if(neg)x=-x; return true; } inline bool _read(char& x){ if(!skip())return false; if(rdLeft+1>=rdRight)reload(); x=rdbuf[rdLeft++]; return true; } inline bool _read(string& x){ if(!skip())return false; for(;;){ int pos=rdLeft; while(pos<rdRight and rdbuf[pos]>' ')pos++; x.append(rdbuf+rdLeft,pos-rdLeft); if(rdLeft==pos)break; rdLeft=pos; if(rdLeft==rdRight)reload(); else break; } return true; } template<typename T>inline bool _read(vector<T>& v){ for(auto& x:v){ if(!_read(x))return false; } return true; } char wtbuf[L],tmp[50]; int wtRight=0; inline void flush(){ fwrite(wtbuf,1,wtRight,stdout); wtRight=0; } inline void _write(const char& x){ if(wtRight>L-32)flush(); wtbuf[wtRight++]=x; } inline void _write(const string& x){ for(auto& c:x)_write(c); } template<typename T,enable_if_t<is_integral<T>::value,int> =0>inline void _write(T x){ if(wtRight>L-32)flush(); if(x==0){ _write('0'); return; } else if(x<0){ _write('-'); if (__builtin_expect(x == std::numeric_limits<T>::min(), 0)) { switch (sizeof(x)) { case 2: _write("32768"); return; case 4: _write("2147483648"); return; case 8: _write("9223372036854775808"); return; } } x=-x; } int pos=0; while(x!=0){ tmp[pos++]=char((x%10)|48); x/=10; } rep(i,0,pos)wtbuf[wtRight+i]=tmp[pos-1-i]; wtRight+=pos; } template<typename T>inline void _write(const vector<T>& v){ rep(i,0,v.size()){ if(i)_write(' '); _write(v[i]); } } public: FastIO(){} ~FastIO(){flush();} inline void read(){} template <typename Head, typename... Tail>inline void read(Head& head,Tail&... tail){ assert(_read(head)); read(tail...); } template<bool ln=true,bool space=false>inline void write(){if(ln)_write('\n');} template <bool ln=true,bool space=false,typename Head, typename... Tail>inline void write(const Head& head,const Tail&... tail){ if(space)_write(' '); _write(head); write<ln,true>(tail...); } }; /** * @brief Fast IO */ #line 3 "sol.cpp" #line 2 "library/DataStructure/segtree.hpp" template<typename M,typename N,M (*f)(M,M),M (*g)(M,N),M (*m1)()>struct SegmentTree{ int n; vector<M> data; SegmentTree(int _n=0){ n=1; while(n<_n)n<<=1; data.assign(2*n,m1()); } void run(vector<M>& v){ for(int i=0;i<(int)v.size();i++)data[i+n]=v[i]; for(int k=n-1;k>0;k--)data[k]=f(data[2*k],data[2*k+1]); } void set(int k,const M &x){ k+=n; data[k]=x; while(k>>=1)data[k]=f(data[2*k],data[2*k+1]); } void update(int k,const N &x){ k+=n; data[k]=g(data[k],x); while(k>>=1)data[k]=f(data[2*k],data[2*k+1]); } M query(int a,int b){ M L=m1(),R=m1(); for(a+=n,b+=n;a<b;a>>=1,b>>=1){ if(a&1)L=f(L,data[a++]); if(b&1)R=f(data[--b],R); } return f(L,R); } M operator[](const int &k)const{return data[k+n];} }; /** * @brief Segment Tree */ #line 5 "sol.cpp" ll f(ll a,ll b){return max(a,b);} ll g(ll a,ll b){return a+b;} ll e0(){return -INF;} FastIO io; int main(){ int n,k; io.read(n,k); vector<int> a(n); io.read(a); // dp[i][j]:=i番目まで見た時のmax,j:i番目をとったか? // dp[i][0]=max(dp[i-1][0],dp[i-1][1]) // dp[i][1]=max_{i-j<k}dp[j][0]-rui[j]+rui[i] vector<ll> tmp(n+1),rui(n+1); rep(i,0,n)rui[i+1]=rui[i]+a[i]; vector dp(n+1,vector<ll>(2)); SegmentTree<ll,ll,f,g,e0> seg(n+1); seg.run(tmp); rep(i,0,n){ dp[i+1][0]=max(dp[i][0],dp[i][1]); dp[i+1][1]=seg.query(max(i-k+2,0),i+1); dp[i+1][1]+=rui[i+1]; seg.update(i+1,dp[i+1][0]-rui[i+1]); } // io.write(rui); ll ret=max(dp[n][0],dp[n][1]); io.write(ret); return 0; }