#68464 (C++11) No.332 数列をプレゼントに

提出ソース

結果

問題	No.332 数列をプレゼントに
ユーザー	shimomire
提出日時	2015-12-25 00:32:05
言語	C++11 (gcc 11.4.0)
結果	AC
実行時間	22 ms / 2,000 ms
コード長	5,460 bytes
コンパイル時間	1,281 ms
コンパイル使用メモリ	132,196 KB
実行使用メモリ	6,456 KB
最終ジャッジ日時	2023-08-25 21:10:37
合計ジャッジ時間	4,119 ms
ジャッジサーバーID （参考情報）	judge15 / 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	4 ms 6,276 KB
testcase_01	AC	3 ms 6,212 KB
testcase_02	AC	3 ms 6,200 KB
testcase_03	AC	4 ms 6,220 KB
testcase_04	AC	4 ms 6,240 KB
testcase_05	AC	8 ms 6,260 KB
testcase_06	AC	11 ms 6,232 KB
testcase_07	AC	21 ms 6,420 KB
testcase_08	AC	11 ms 6,288 KB
testcase_09	AC	3 ms 6,228 KB
testcase_10	AC	11 ms 6,236 KB
testcase_11	AC	8 ms 6,188 KB
testcase_12	AC	14 ms 6,224 KB
testcase_13	AC	12 ms 6,212 KB
testcase_14	AC	7 ms 6,344 KB
testcase_15	AC	13 ms 6,296 KB
testcase_16	AC	13 ms 6,216 KB
testcase_17	AC	14 ms 6,152 KB
testcase_18	AC	14 ms 6,276 KB
testcase_19	AC	13 ms 6,152 KB
testcase_20	AC	13 ms 6,232 KB
testcase_21	AC	13 ms 6,456 KB
testcase_22	AC	13 ms 6,196 KB
testcase_23	AC	17 ms 6,260 KB
testcase_24	AC	20 ms 6,152 KB
testcase_25	AC	21 ms 6,208 KB
testcase_26	AC	18 ms 6,284 KB
testcase_27	AC	15 ms 6,260 KB
testcase_28	AC	21 ms 6,236 KB
testcase_29	AC	20 ms 6,156 KB
testcase_30	AC	15 ms 6,260 KB
testcase_31	AC	21 ms 6,288 KB
testcase_32	AC	20 ms 6,196 KB
testcase_33	AC	21 ms 6,172 KB
testcase_34	AC	20 ms 6,236 KB
testcase_35	AC	21 ms 6,308 KB
testcase_36	AC	3 ms 6,208 KB
testcase_37	AC	22 ms 6,240 KB
testcase_38	AC	22 ms 6,220 KB
testcase_39	AC	18 ms 6,256 KB
testcase_40	AC	21 ms 6,296 KB
testcase_41	AC	21 ms 6,204 KB
testcase_42	AC	21 ms 6,148 KB
testcase_43	AC	22 ms 6,280 KB
testcase_44	AC	14 ms 6,140 KB
testcase_45	AC	21 ms 6,220 KB
testcase_46	AC	13 ms 6,232 KB

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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;

using i32=int32_t;using i64=int64_t;using ll =i64;using uint=uint32_t;using ull=uint64_t;
template<typename T> using matrix=vector<vector<T> >;

#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;}
};

//output
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;}
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;}

//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<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;}

ll gcd_positive(ll a,ll b) { return b == 0 ? a : gcd_positive(b,a%b); }
ll gcd(ll a,ll b) { return gcd_positive(abs(a), abs(b)); }
ll lcm(ll a,ll b){return a/gcd(a,b)*b;}

class Main{
	public:
	vector<string> dp;int N; ll X;
	vector<pair<ll,int>> as;
	string str="";
	bool ok = false;
	void dfs(ll v,int i){
		if(IN(0,X-v,100050) and dp[X-v].size()>0){
			ok = true;
			for(int i:range(N))if(dp[X-v][i]=='o')str[i]='o';
			return;
		}
		if(i==N)return;
		if(!ok){
			dfs(v,i+1);
		}
		if(!ok){
			str[as[i].second] = 'o';
			dfs(v+as[i].first,i+1);
			if(!ok)str[as[i].second] = 'x';
		}
	}
	void run(){
		cin >> N >> X;
		as = vector<pair<ll,int>>(N);
		for(int i:range(N)){
			int v;cin >> v;
			as[i]={v,i};
		}
		sort(ALL(as));
		// 上の20個は 2^20 -> 残りは 10^5 以下　くらい
		dp = vector<string>(100050,string(0,'x'));
		for(int i:range(N)) dp[0]+='x';

		for(int i:range(max(0,N-20))){
			for(int v=100050-1;v>=0;v--)if(dp[v].size()>0){
				assert(v+as[i].first < 100050);
				// cerr<< make_tuple(v+as[i].first,v) << endl;
				dp[v+as[i].first] = dp[v]; 
				dp[v+as[i].first][as[i].second] = 'o';
			}
		}

		for(int i:range(N)) str+='x';

		dfs(0,max(0,N-20));

		if(ok){
			cout << str << endl;
		}else{
			cout << "No" << endl;
		}
	}
};

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

yukicoder

結果

テストケース

ソースコード