#27316 (C++11) No.210 探し物はどこですか？

提出ソース

結果

問題	No.210 探し物はどこですか？
ユーザー	shimomire
提出日時	2015-05-16 01:07:41
言語	C++11 (gcc 11.4.0)
結果	AC
実行時間	1,125 ms / 2,000 ms
コード長	6,614 bytes
コンパイル時間	997 ms
コンパイル使用メモリ	123,060 KB
実行使用メモリ	4,384 KB
最終ジャッジ日時	2023-09-20 08:58:51
合計ジャッジ時間	9,597 ms
ジャッジサーバーID （参考情報）	judge14 / judge11

このコードへのチャレンジ
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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	108 ms 4,380 KB
testcase_01	AC	555 ms 4,376 KB
testcase_02	AC	1,125 ms 4,380 KB
testcase_03	AC	2 ms 4,380 KB
testcase_04	AC	3 ms 4,376 KB
testcase_05	AC	3 ms 4,380 KB
testcase_06	AC	2 ms 4,380 KB
testcase_07	AC	3 ms 4,376 KB
testcase_08	AC	9 ms 4,376 KB
testcase_09	AC	8 ms 4,380 KB
testcase_10	AC	8 ms 4,376 KB
testcase_11	AC	6 ms 4,380 KB
testcase_12	AC	6 ms 4,380 KB
testcase_13	AC	10 ms 4,376 KB
testcase_14	AC	6 ms 4,380 KB
testcase_15	AC	7 ms 4,376 KB
testcase_16	AC	7 ms 4,376 KB
testcase_17	AC	5 ms 4,376 KB
testcase_18	AC	63 ms 4,376 KB
testcase_19	AC	65 ms 4,384 KB
testcase_20	AC	60 ms 4,376 KB
testcase_21	AC	64 ms 4,376 KB
testcase_22	AC	62 ms 4,376 KB
testcase_23	AC	24 ms 4,380 KB
testcase_24	AC	20 ms 4,376 KB
testcase_25	AC	21 ms 4,380 KB
testcase_26	AC	23 ms 4,376 KB
testcase_27	AC	32 ms 4,380 KB
testcase_28	AC	314 ms 4,376 KB
testcase_29	AC	310 ms 4,376 KB
testcase_30	AC	311 ms 4,380 KB
testcase_31	AC	322 ms 4,376 KB
testcase_32	AC	313 ms 4,380 KB
testcase_33	AC	44 ms 4,376 KB
testcase_34	AC	45 ms 4,376 KB
testcase_35	AC	41 ms 4,376 KB
testcase_36	AC	50 ms 4,376 KB
testcase_37	AC	43 ms 4,384 KB
testcase_38	AC	543 ms 4,376 KB
testcase_39	AC	545 ms 4,380 KB
testcase_40	AC	573 ms 4,376 KB
testcase_41	AC	524 ms 4,376 KB
testcase_42	AC	550 ms 4,380 KB
testcase_43	AC	2 ms 4,376 KB
testcase_44	AC	1 ms 4,380 KB
testcase_45	AC	2 ms 4,376 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

#include <cassert>// c
#include <iostream>// io
#include <iomanip>
#include <fstream>
#include <sstream>
#include <vector>// container
#include <map>
#include <set>
#include <queue>
#include <bitset>
#include <stack>
#include <algorithm>// other
#include <complex>
#include <numeric>
#include <functional>
#include <random>
#include <regex>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;

#define ALL(c) (begin(c)),(end(c))
#define REP(i,n) FOR(i,0,n)
#define REPr(i,n) FORr(i,0,n)
#define FOR(i,l,r) for(int i=(int)(l);i<(int)(r);++i)
#define FORr(i,l,r) for(int i=(int)(r)-1;i>=(int)(l);--i)
#define EACH(it,o) for(auto it = (o).begin(); it != (o).end(); ++it)
#define IN(l,v,r) ((l)<=(v) && (v)<(r))
#define UNIQUE(v) v.erase(unique(ALL(v)),v.end())
//debug
#define DUMP(x)  cerr << #x << " = " << (x)
#define LINE()    cerr<< " (L" << __LINE__ << ")"

class range {
private:
	struct Iter{
		int v;
		int operator*(){return v;}
		bool operator!=(Iter& itr) {return v < itr.v;}
		void operator++() {++v;}
	};
	Iter i, n;
public:
	range(int n) : i({0}), n({n}) {}
	range(int i, int n) : i({i}), n({n}) {}
	Iter& begin() {return i;}
	Iter& end() {return n;}
};

struct rrange{
	struct Iter{
		int v,step;
		Iter& operator++(){v-=step;return *this;}
		bool operator!=(Iter& itr){return v>itr.v;}
		int& operator*(){return v;}
	};
	Iter i, n;
	rrange(int i, int n,int step):i({i-1,step}), n({n-1,step}){}
	rrange(int i, int n):rrange(i,n,1){}
	rrange(int n) :rrange(0,n){}
	Iter& begin(){return n;}
	Iter& end(){return i;}
};


//input
template<typename T1,typename T2> istream& operator >> (istream& is,pair<T1,T2>& p){is>>p.first>>p.second;return is;}
template<typename T1> istream& operator >> (istream& is,tuple<T1>& t){is >> get<0>(t);return is;}
template<typename T1,typename T2> istream& operator >> (istream& is,tuple<T1,T2>& t){is >> get<0>(t) >> get<1>(t);return is;}
template<typename T1,typename T2,typename T3> istream& operator >> (istream& is,tuple<T1,T2,T3>& t){is >>get<0>(t)>>get<1>(t)>>get<2>(t);return is;}
template<typename T1,typename T2,typename T3,typename T4> istream& operator >> (istream& is,tuple<T1,T2,T3,T4>& t){is >> get<0>(t)>>get<1>(t)>>get<2>(t)>>get<3>(t);return is;}
template<typename T1,typename T2,typename T3,typename T4,typename T5> istream& operator >> (istream& is, const tuple<T1,T2,T3,T4,T5>& t){is >> get<0>(t) >> get<1>(t) >> get<2>(t) >> get<3>(t) >> get<4>(t);return is;}
template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6> istream& operator >> (istream& is, const tuple<T1,T2,T3,T4,T5,T6>& t){is >> get<0>(t) >> get<1>(t) >> get<2>(t) >> get<3>(t) >> get<4>(t) >> get<5>(t);return is;}
template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6,typename T7> istream& operator >> (istream& is, const tuple<T1,T2,T3,T4,T5,T6,T7>& t){is >> get<0>(t) >> get<1>(t) >> get<2>(t) >> get<3>(t) >> get<4>(t) >> get<5>(t) >> get<6>(t);return is;}
template<typename T> istream& operator >> (istream& is,vector<T>& as){REP(i,as.size())is >>as[i];return is;}

//output
template<typename T> ostream& operator << (ostream& os, const set<T>& ss){for(auto a:ss){if(a!=ss.begin())os<<" "; os<<a;}return os;}
template<typename T1,typename T2> ostream& operator << (ostream& os, const pair<T1,T2>& p){os<<p.first<<" "<<p.second;return os;}
template<typename K,typename V> ostream& operator << (ostream& os, const map<K,V>& m){bool isF=true;for(auto& p:m){if(!isF)os<<endl;os<<p;isF=false;}return os;}
template<typename T1> ostream& operator << (ostream& os, const tuple<T1>& t){os << get<0>(t);return os;}
template<typename T1,typename T2> ostream& operator << (ostream& os, const tuple<T1,T2>& t){os << get<0>(t)<<" "<<get<1>(t);return os;}
template<typename T1,typename T2,typename T3> ostream& operator << (ostream& os, const tuple<T1,T2,T3>& t){os << get<0>(t)<<" "<<get<1>(t)<<" "<<get<2>(t);return os;}
template<typename T1,typename T2,typename T3,typename T4> ostream& operator << (ostream& os, const tuple<T1,T2,T3,T4>& t){os << get<0>(t)<<" "<<get<1>(t)<<" "<<get<2>(t)<<" "<<get<3>(t);return os;}
template<typename T1,typename T2,typename T3,typename T4,typename T5> ostream& operator << (ostream& os, const tuple<T1,T2,T3,T4,T5>& t){os << get<0>(t)<<" "<<get<1>(t)<<" "<<get<2>(t)<<" "<<get<3>(t)<<" "<<get<4>(t);return os;}
template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6> ostream& operator << (ostream& os, const tuple<T1,T2,T3,T4,T5,T6>& t){os << get<0>(t)<<" "<<get<1>(t)<<" "<<get<2>(t)<<" "<<get<3>(t)<<" "<<get<4>(t)<<" "<<get<5>(t);return os;}
template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6,typename T7> ostream& operator << (ostream& os, const tuple<T1,T2,T3,T4,T5,T6,T7>& t){os << get<0>(t)<<" "<<get<1>(t)<<" "<<get<2>(t)<<" "<<get<3>(t)<<" "<<get<4>(t)<<" "<<get<5>(t)<<" "<<get<6>(t);return os;}
template<typename T> ostream& operator << (ostream& os, const vector<T>& as){REP(i,as.size()){if(i!=0)os<<" "; os<<as[i];}return os;}
template<typename T> ostream& operator << (ostream& os, const vector<vector<T>>& as){REP(i,as.size()){if(i!=0)os<<endl; os<<as[i];}return os;}

//input
char tmp[1000];
#define nextInt(n) scanf("%d",&n)
#define nextLong(n) scanf("%lld",&n) //I64d
#define nextDouble(n) scanf("%lf",&n) 
#define nextChar(n) scanf("%c",&n)
#define nextString(n) scanf("%s",tmp);n=tmp

// values
template<typename T> T INF(){assert(false);};
template<> int INF<int>(){return 1<<28;};
template<> ll INF<ll>(){return 1LL<<58;};
template<> double INF<double>(){return 1e16;};
template<> long double INF<long double>(){return 1e16;};

template<class T> T EPS(){assert(false);};
template<> int EPS<int>(){return 1;};
template<> ll EPS<ll>(){return 1LL;};
template<> double EPS<double>(){return 1e-8;};
template<> long double EPS<long double>(){return 1e-8;};

template<typename T,typename U> T pmod(T v,U M){return (v%M+M)%M;}

class Main{
	public:
	void run(){
		// 100000 * 
		int N;cin >> N;
		vector<long double> ps(N),qs(N);
		cin >> ps >> qs;
		for(int i:range(N))ps[i]/=1000;
		for(int i:range(N))qs[i]/=100;

		long double res = 0;
		priority_queue<tuple<long double,int,int>> que;
		for(int i:range(N))que.push(make_tuple(ps[i]*qs[i],i,1));
		int t = 1;
		while(!que.empty()){
			long double p;int i;int k;tie(p,i,k)=que.top();que.pop();
			if(p<1e-8 && t*p<1e-8)break;
			res += t * p;
			que.push(make_tuple(ps[i]*qs[i]*pow(1-qs[i],k),i,k+1));
			t++;
		}
		cout << res <<endl;
	}
};

int main(){
	cout <<fixed<<setprecision(20);
	cin.tie(0);
	ios::sync_with_stdio(false);
	Main().run();
	return 0;
}

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結果

テストケース

ソースコード