結果

問題 No.332 数列をプレゼントに
ユーザー shimomireshimomire
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 1,099 ms
コンパイル使用メモリ 125,700 KB
実行使用メモリ 6,528 KB
最終ジャッジ日時 2024-06-06 15:14:01
合計ジャッジ時間 3,182 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
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 3 ms
6,272 KB
testcase_01 AC 4 ms
6,272 KB
testcase_02 AC 3 ms
6,272 KB
testcase_03 AC 3 ms
6,400 KB
testcase_04 AC 2 ms
6,272 KB
testcase_05 AC 13 ms
6,400 KB
testcase_06 AC 10 ms
6,400 KB
testcase_07 AC 21 ms
6,272 KB
testcase_08 AC 10 ms
6,400 KB
testcase_09 AC 3 ms
6,400 KB
testcase_10 AC 10 ms
6,272 KB
testcase_11 AC 8 ms
6,400 KB
testcase_12 AC 13 ms
6,400 KB
testcase_13 AC 10 ms
6,400 KB
testcase_14 AC 5 ms
6,400 KB
testcase_15 AC 11 ms
6,400 KB
testcase_16 AC 12 ms
6,400 KB
testcase_17 AC 13 ms
6,400 KB
testcase_18 AC 12 ms
6,400 KB
testcase_19 AC 12 ms
6,400 KB
testcase_20 AC 11 ms
6,272 KB
testcase_21 AC 12 ms
6,528 KB
testcase_22 AC 10 ms
6,400 KB
testcase_23 AC 16 ms
6,400 KB
testcase_24 AC 20 ms
6,272 KB
testcase_25 AC 19 ms
6,400 KB
testcase_26 AC 17 ms
6,272 KB
testcase_27 AC 13 ms
6,272 KB
testcase_28 AC 20 ms
6,400 KB
testcase_29 AC 19 ms
6,400 KB
testcase_30 AC 13 ms
6,400 KB
testcase_31 AC 21 ms
6,400 KB
testcase_32 AC 19 ms
6,400 KB
testcase_33 AC 20 ms
6,272 KB
testcase_34 AC 19 ms
6,272 KB
testcase_35 AC 19 ms
6,400 KB
testcase_36 AC 2 ms
6,272 KB
testcase_37 AC 21 ms
6,272 KB
testcase_38 AC 21 ms
6,272 KB
testcase_39 AC 17 ms
6,400 KB
testcase_40 AC 21 ms
6,272 KB
testcase_41 AC 19 ms
6,400 KB
testcase_42 AC 22 ms
6,400 KB
testcase_43 AC 22 ms
6,400 KB
testcase_44 AC 14 ms
6,272 KB
testcase_45 AC 20 ms
6,400 KB
testcase_46 AC 13 ms
6,400 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

diff #

#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;
}
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