結果
問題 | No.1715 Dinner 2 |
ユーザー |
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提出日時 | 2023-01-10 00:29:21 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 168 ms / 2,000 ms |
コード長 | 5,589 bytes |
コンパイル時間 | 2,255 ms |
コンパイル使用メモリ | 207,724 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-12-18 01:43:39 |
合計ジャッジ時間 | 4,990 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,820 KB |
testcase_02 | AC | 2 ms
6,820 KB |
testcase_03 | AC | 2 ms
6,820 KB |
testcase_04 | AC | 2 ms
6,816 KB |
testcase_05 | AC | 2 ms
6,816 KB |
testcase_06 | AC | 2 ms
6,820 KB |
testcase_07 | AC | 2 ms
6,820 KB |
testcase_08 | AC | 2 ms
6,820 KB |
testcase_09 | AC | 2 ms
6,816 KB |
testcase_10 | AC | 1 ms
6,816 KB |
testcase_11 | AC | 132 ms
6,820 KB |
testcase_12 | AC | 106 ms
6,816 KB |
testcase_13 | AC | 90 ms
6,816 KB |
testcase_14 | AC | 108 ms
6,820 KB |
testcase_15 | AC | 108 ms
6,820 KB |
testcase_16 | AC | 104 ms
6,816 KB |
testcase_17 | AC | 66 ms
6,816 KB |
testcase_18 | AC | 3 ms
6,816 KB |
testcase_19 | AC | 4 ms
6,820 KB |
testcase_20 | AC | 3 ms
6,820 KB |
testcase_21 | AC | 3 ms
6,816 KB |
testcase_22 | AC | 4 ms
6,820 KB |
testcase_23 | AC | 4 ms
6,816 KB |
testcase_24 | AC | 4 ms
6,820 KB |
testcase_25 | AC | 15 ms
6,816 KB |
testcase_26 | AC | 10 ms
6,820 KB |
testcase_27 | AC | 10 ms
6,816 KB |
testcase_28 | AC | 14 ms
6,816 KB |
testcase_29 | AC | 13 ms
6,816 KB |
testcase_30 | AC | 13 ms
6,816 KB |
testcase_31 | AC | 15 ms
6,816 KB |
testcase_32 | AC | 168 ms
6,816 KB |
testcase_33 | AC | 165 ms
6,816 KB |
testcase_34 | AC | 164 ms
6,820 KB |
testcase_35 | AC | 162 ms
6,816 KB |
testcase_36 | AC | 2 ms
6,820 KB |
testcase_37 | AC | 2 ms
6,820 KB |
testcase_38 | AC | 4 ms
6,820 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" FastIO io; int main(){ int n,d; io.read(n,d); vector<int> p(n),q(n); rep(i,0,n)io.read(p[i],q[i]); int L=-inf,R=0; while(R-L>1){ int mid=(L+R)>>1; vector<int> from(n,-inf),to(n); rep(i,0,n)if(mid<=-p[i])from[i]=-p[i]+q[i]; rep(_,0,d-1){ rep(i,0,n)to[i]=-inf; vector<int> L(n),R(n); L[0]=from[0],R[n-1]=from[n-1]; rep(i,1,n)L[i]=max(L[i-1],from[i]); for(int i=n-2;i>=0;i--)R[i]=max(R[i+1],from[i]); rep(i,0,n){ int mx=-inf; if(i)chmax(mx,L[i-1]); if(i!=n-1)chmax(mx,R[i+1]); if(mid<=mx-p[i])to[i]=mx-p[i]+q[i]; } swap(from,to); } if(*max_element(ALL(from))!=-inf)L=mid; else R=mid; } io.write(L); return 0; }