結果
問題 | No.1590 Random Shopping |
ユーザー | nxteru |
提出日時 | 2021-07-08 22:40:11 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
MLE
|
実行時間 | - |
コード長 | 5,952 bytes |
コンパイル時間 | 2,257 ms |
コンパイル使用メモリ | 212,404 KB |
実行使用メモリ | 812,800 KB |
最終ジャッジ日時 | 2024-07-01 12:55:26 |
合計ジャッジ時間 | 5,846 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 3 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 3 ms
6,940 KB |
testcase_07 | AC | 4 ms
6,940 KB |
testcase_08 | AC | 7 ms
7,808 KB |
testcase_09 | AC | 17 ms
15,872 KB |
testcase_10 | AC | 42 ms
37,504 KB |
testcase_11 | AC | 123 ms
105,984 KB |
testcase_12 | AC | 403 ms
326,996 KB |
testcase_13 | MLE | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
ソースコード
#include <bits/stdc++.h> //#include <atcoder/all> using namespace std; //using namespace atcoder; using ll=long long; #define rng(i,l,r) for(int i=int(l);i<int(r);i++) #define rep(i,r) rng(i,0,r) #define rrng(i,l,r) for(int i=int(r)-1;i>=int(l);i--) #define rrep(i,r) rrng(i,0,r) #define pb push_back #define eb emplace_back #define mp make_pair #define mt make_tuple #define F first #define S second #define bg begin() #define ed end() #define all(x) x.bg,x.ed #define si(x) int(x.size()) #define inf INT_MAX/2-100 #define infl LLONG_MAX/3 #ifdef LOCAL #define dmp(x) cerr<<__LINE__<<' '<<#x<<' '<<x<<endl #else #define dmp(x) void(0) #endif template<class t,class u>bool chmax(t&a,u b){if(a<b)a=b;return a<b;} template<class t,class u>bool chmin(t&a,u b){if(b<a)a=b;return b<a;} template<class t>using vc=vector<t>; template<class t>using vvc=vector<vector<t>>; using pi=pair<int,int>; using pl=pair<ll,ll>; using vi=vc<int>; using vl=vc<ll>; ll readl(void){ ll x; cin>>x; return x; } int readi(void){ int x; cin>>x; return x; } string readstr(){ string s; cin>>s; return s; } vi readvi(int n,int off=0){ vi v(n); rep(i,n)v[i]=readi(),v[i]+=off; return v; } vl readvl(int n,int off=0){ vl v(n); rep(i,n)v[i]=readl(),v[i]+=off; return v; } template<class t> void print(t x,int suc=1){ cout<<x; if(suc==1)cout<<"\n"; if(suc==2)cout<<" "; } template<class t> void print(const vc<t>&v,int suc=1){ rep(i,si(v))print(v[i],i==int(si(v))-1?1:suc); } template<class t> bool inc(t a,t b,t c){ return !(c<b||b<a); } template<class t> void compress(vc<t>&v){ sort(all(v)); v.erase(unique(all(v)),v.ed); } template<class t> int lwb(const vc<t>&v,const t&a){ return lower_bound(all(v),a)-v.bg; } template<class t> struct Compress{ vc<t>v; Compress()=default; Compress(const vc<t>&x){ add(x); } Compress(const initializer_list<vc<t> >&x){ for(auto &p:x)add(p); } void add(const t&x){ v.eb(x); } void add(const vc<t>&x){ copy(all(x),back_inserter(v)); } void build(){ compress(v); } int get(const t&x)const{ return lwb(v,x); } vc<t>get(const vc<t>&x)const{ vc<t>res(x); for(auto &p:res)p=get(p); return res; } const t &operator[](int x)const{ return v[x]; } int size(){ return v.size(); } }; void Yes(bool ex=true){ cout<<"Yes\n"; if(ex)exit(0); } void YES(bool ex=true){ cout<<"YES\n"; if(ex)exit(0); } void No(bool ex=true){ cout<<"No\n"; if(ex)exit(0); } void NO(bool ex=true){ cout<<"NO\n"; if(ex)exit(0); } void orYes(bool x,bool ex=true){ if(x)Yes(ex); else No(ex); } void orYES(bool x,bool ex=true){ if(x)YES(ex); else NO(ex); } void Possible(bool ex=true){ cout<<"Possible\n"; if(ex)exit(0); } void POSSIBLE(bool ex=true){ cout<<"POSSIBLE\n"; if(ex)exit(0); } void Impossible(bool ex=true){ cout<<"Impossible\n"; if(ex)exit(0); } void IMPOSSIBLE(bool ex=true){ cout<<"IMPOSSIBLE\n"; if(ex)exit(0); } void orPossible(bool x,bool ex=true){ if(x)Possible(ex); else Impossible(ex); } void orPOSSIBLE(bool x,bool ex=true){ if(x)POSSIBLE(ex); else IMPOSSIBLE(ex); } using uint=unsigned; using ull=unsigned long long; template<uint const& MOD> struct Modular{ static constexpr uint const &mod=MOD; uint v; Modular(long long x=0){c(x%mod+mod);} Modular& c(uint x){ v=x<mod?x:x-mod; return *this; } Modular pow(int k)const{ Modular res(1),tmp(v); while(k){ if(k&1)res*=tmp; tmp*=tmp; k>>=1; } return res; } Modular inv()const{return pow(mod-2);} Modular operator-()const{return Modular(mod-v);} Modular& operator+=(const Modular &x){return c(v+x.v);} Modular& operator-=(const Modular &x){return c(v+mod-x.v);} Modular& operator*=(const Modular &x){v=ull(v)*x.v%mod;return *this;} Modular& operator/=(const Modular &x){return *this*=x.inv();} Modular operator+(const Modular &x)const{return Modular(*this)+=x;} Modular operator-(const Modular &x)const{return Modular(*this)-=x;} Modular operator*(const Modular &x)const{return Modular(*this)*=x;} Modular operator/(const Modular &x)const{return Modular(*this)/=x;} friend Modular operator+(long long x,const Modular &y){return Modular(x)+y;} friend Modular operator-(long long x,const Modular &y){return Modular(x)-y;} friend Modular operator*(long long x,const Modular &y){return Modular(x)*y;} friend Modular operator/(long long x,const Modular &y){return Modular(x)/y;} friend ostream& operator<<(ostream&os,const Modular&x){ return os<<x.v; } friend istream& operator>>(istream&is,Modular&x){ long long p; is>>p; x=Modular(p); return is; } bool operator==(const Modular &x)const{return v==x.v;} bool operator!=(const Modular &x)const{return v!=x.v;} bool operator<(const Modular &x)const{return v<x.v;} explicit operator bool()const{return v;} }; uint MODULAR=998244353; //uint MODULAR=1000000007; using Mint=Modular<MODULAR>; vector<Mint>fact,finv,invs; void Initfact(int n=(1<<21)+10){ fact.resize(n+1),finv.resize(n+1),invs.resize(n+1); fact[0]=1; for(int i=1;i<=n;i++){ fact[i]=fact[i-1]*i; } finv[n]=fact[n].inv(); for(int i=n-1;i>=0;i--){ finv[i]=finv[i+1]*(i+1); } invs[0]=1; for(int i=0;i<=n;i++){ invs[i]=finv[i]*fact[i-1]; } } Mint comb(int n,int k){ return fact[n]*finv[n-k]*finv[k]; } ll gcd(ll a,ll b){ if(a<b)swap(a,b); if(b==0)return a; return gcd(b,a%b); } using ld=double; ll n,a[505],r[505]; ld dp[505][505][505][2],ans; int main(void){ cin.tie(0); ios::sync_with_stdio(0); //cout << fixed << setprecision(15) << y << endl; cin>>n; rep(i,n)cin>>a[i]; rep(i,n)cin>>r[i]; rep(i,n)dp[0][i][0][0]=1; rep(i,n){ rep(j,n){ rep(k,n){ rep(l,2){ ld p=dp[i][j][k][l]/ld(2); int nk=k,nl=l; if(mp(a[i],i)<mp(a[j],j)){ nk++; } if(i==j)nl=1; dp[i+1][j][nk][nl]+=p; if(nk>0)nk--; else if(nk==0&&nl==1){ nl--; ans+=ld(r[i])*ld(a[j])*p; } dp[i+1][j][nk][nl]+=p; } } } } cout << fixed << setprecision(15) << ans << endl; }