結果

問題 No.573 a^2[i] = a[i]
ユーザー しらっ亭しらっ亭
提出日時 2017-10-07 01:13:30
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 13 ms / 2,000 ms
コード長 6,203 bytes
コンパイル時間 1,456 ms
コンパイル使用メモリ 166,376 KB
実行使用メモリ 5,232 KB
最終ジャッジ日時 2023-08-10 18:28:50
合計ジャッジ時間 3,227 ms
ジャッジサーバーID
(参考情報)
judge12 / judge13
このコードへのチャレンジ(β)

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 5 ms
4,936 KB
testcase_01 AC 5 ms
5,228 KB
testcase_02 AC 5 ms
5,012 KB
testcase_03 AC 4 ms
4,920 KB
testcase_04 AC 5 ms
4,912 KB
testcase_05 AC 5 ms
5,208 KB
testcase_06 AC 4 ms
4,976 KB
testcase_07 AC 5 ms
4,920 KB
testcase_08 AC 5 ms
4,920 KB
testcase_09 AC 5 ms
5,112 KB
testcase_10 AC 5 ms
4,992 KB
testcase_11 AC 5 ms
5,212 KB
testcase_12 AC 4 ms
4,996 KB
testcase_13 AC 5 ms
4,932 KB
testcase_14 AC 5 ms
4,920 KB
testcase_15 AC 5 ms
5,028 KB
testcase_16 AC 4 ms
5,048 KB
testcase_17 AC 5 ms
4,960 KB
testcase_18 AC 5 ms
4,988 KB
testcase_19 AC 4 ms
4,932 KB
testcase_20 AC 5 ms
4,976 KB
testcase_21 AC 4 ms
4,968 KB
testcase_22 AC 5 ms
4,924 KB
testcase_23 AC 5 ms
4,984 KB
testcase_24 AC 5 ms
4,928 KB
testcase_25 AC 5 ms
4,932 KB
testcase_26 AC 5 ms
5,116 KB
testcase_27 AC 5 ms
4,924 KB
testcase_28 AC 5 ms
5,112 KB
testcase_29 AC 5 ms
5,048 KB
testcase_30 AC 5 ms
4,924 KB
testcase_31 AC 5 ms
4,916 KB
testcase_32 AC 5 ms
5,076 KB
testcase_33 AC 5 ms
5,232 KB
testcase_34 AC 5 ms
5,148 KB
testcase_35 AC 5 ms
4,928 KB
testcase_36 AC 5 ms
4,932 KB
testcase_37 AC 4 ms
4,924 KB
testcase_38 AC 5 ms
5,140 KB
testcase_39 AC 5 ms
5,192 KB
testcase_40 AC 5 ms
4,928 KB
testcase_41 AC 5 ms
4,924 KB
testcase_42 AC 5 ms
4,992 KB
testcase_43 AC 5 ms
4,932 KB
testcase_44 AC 5 ms
4,920 KB
testcase_45 AC 5 ms
4,940 KB
testcase_46 AC 13 ms
4,992 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 <bits/stdc++.h>
using namespace std;

#define forr(x,arr) for(auto&& x:arr)
#define _overload3(_1,_2,_3,name,...) name
#define _rep2(i,n) _rep3(i,0,n)
#define _rep3(i,a,b) for(int i=int(a);i<int(b);++i)
#define rep(...) _overload3(__VA_ARGS__,_rep3,_rep2,)(__VA_ARGS__)
#define _rrep2(i,n) _rrep3(i,0,n)
#define _rrep3(i,a,b) for(int i=int(b)-1;i>=int(a);i--)
#define rrep(...) _overload3(__VA_ARGS__,_rrep3,_rrep2,)(__VA_ARGS__)
#define all(x) (x).begin(),(x).end()
#define bit(n) (1LL<<(n))
#define sz(x) ((int)(x).size())
#define TEN(n) ((ll)(1e##n))
#define fst first
#define snd second

string DBG_DLM(int &i){return(i++==0?"":", ");}
#define DBG_B(exp){int i=0;os<<"{";{exp;}os<<"}";return os;}
template<class T>ostream&operator<<(ostream&os,vector<T>v);
template<class T>ostream&operator<<(ostream&os,set<T>v);
template<class T>ostream&operator<<(ostream&os,queue<T>q);
template<class T>ostream&operator<<(ostream&os,priority_queue<T>q);
template<class T,class K>ostream&operator<<(ostream&os,pair<T,K>p);
template<class T,class K>ostream&operator<<(ostream&os,map<T,K>mp);
template<class T,class K>ostream&operator<<(ostream&os,unordered_map<T,K>mp);
template<int I,class TPL>void DBG(ostream&os,TPL t){}
template<int I,class TPL,class H,class...Ts>void DBG(ostream&os,TPL t){os<<(I==0?"":", ")<<get<I>(t);DBG<I+1,TPL,Ts...>(os,t);}
template<class T,class K>void DBG(ostream&os,pair<T,K>p,string delim){os<<"("<<p.first<<delim<<p.second<<")";}
template<class...Ts>ostream&operator<<(ostream&os,tuple<Ts...>t){os<<"(";DBG<0,tuple<Ts...>,Ts...>(os,t);os<<")";return os;}
template<class T,class K>ostream&operator<<(ostream&os,pair<T,K>p){DBG(os,p,", ");return os;}
template<class T>ostream&operator<<(ostream&os,vector<T>v){DBG_B(forr(t,v){os<<DBG_DLM(i)<<t;});}
template<class T>ostream&operator<<(ostream&os,set<T>s){DBG_B(forr(t,s){os<<DBG_DLM(i)<<t;});}
template<class T>ostream&operator<<(ostream&os,queue<T>q){DBG_B(for(;q.size();q.pop()){os<<DBG_DLM(i)<<q.front();});}
template<class T>ostream&operator<<(ostream&os,priority_queue<T>q){DBG_B(for(;q.size();q.pop()){os<<DBG_DLM(i)<<q.top();});}
template<class T,class K>ostream&operator<<(ostream&os,map<T,K>m){DBG_B(forr(p,m){os<<DBG_DLM(i);DBG(os,p,"->");});}
template<class T,class K>ostream&operator<<(ostream&os,unordered_map<T,K>m){DBG_B(forr(p,m){os<<DBG_DLM(i);DBG(os,p,"->");});}
#define DBG_OVERLOAD(_1,_2,_3,_4,_5,_6,macro_name,...)macro_name
#define DBG_LINE(){char s[99];sprintf(s,"line:%3d | ",__LINE__);cerr<<s;}
#define DBG_OUTPUT(v){cerr<<(#v)<<"="<<(v);}
#define DBG1(v,...){DBG_OUTPUT(v);}
#define DBG2(v,...){DBG_OUTPUT(v);cerr<<", ";DBG1(__VA_ARGS__);}
#define DBG3(v,...){DBG_OUTPUT(v);cerr<<", ";DBG2(__VA_ARGS__);}
#define DBG4(v,...){DBG_OUTPUT(v);cerr<<", ";DBG3(__VA_ARGS__);}
#define DBG5(v,...){DBG_OUTPUT(v);cerr<<", ";DBG4(__VA_ARGS__);}
#define DBG6(v,...){DBG_OUTPUT(v);cerr<<", ";DBG5(__VA_ARGS__);}
#define DEBUG0(){DBG_LINE();cerr<<endl;}
#ifdef LOCAL
#define out(...){DBG_LINE();DBG_OVERLOAD(__VA_ARGS__,DBG6,DBG5,DBG4,DBG3,DBG2,DBG1)(__VA_ARGS__);cerr<<endl;}
#else
#define out(...)
#endif

using ll=long long;
using pii=pair<int,int>;using pll=pair<ll,ll>;using pil=pair<int,ll>;using pli=pair<ll,int>;
using vs=vector<string>;using vvs=vector<vs>;using vvvs=vector<vvs>;
using vb=vector<bool>;using vvb=vector<vb>;using vvvb=vector<vvb>;
using vi=vector<int>;using vvi=vector<vi>;using vvvi=vector<vvi>;
using vl=vector<ll>;using vvl=vector<vl>;using vvvl=vector<vvl>;
using vd=vector<double>;using vvd=vector<vd>;using vvvd=vector<vvd>;
using vpii=vector<pii>;using vvpii=vector<vpii>;using vvvpii=vector<vvpii>;
template<class A,class B>bool amax(A&a,const B&b){return b>a?a=b,1:0;}
template<class A,class B>bool amin(A&a,const B&b){return b<a?a=b,1:0;}
ll ri(){ll l;cin>>l;return l;} string rs(){string s;cin>>s;return s;}

const int mod = 1e9 + 7;

template <int MOD> struct Mint {
	int x;
	Mint() : x(0) {}
	Mint(int y) : x(y >= 0 ? y % MOD : MOD - (-y) % MOD) {}
	Mint(int64_t sll) : x(sll % MOD) {
		if (x < 0) x += MOD;
	}
	Mint &operator+=(const Mint &rhs) {
		if ((x += rhs.x) >= MOD) x -= MOD;
		return *this;
	}
	Mint &operator-=(const Mint &rhs) {
		if ((x += MOD - rhs.x) >= MOD) x -= MOD;
		return *this;
	}
	Mint &operator*=(const Mint &rhs) {
		x = 1LL * x * rhs.x % MOD;
		return *this;
	}
	Mint &operator/=(const Mint &rhs) {
		x = (1LL * x * rhs.inv().x) % MOD;
		return *this;
	}
	Mint operator-() const { return Mint(-x); }
	Mint operator+(const Mint &rhs) const { return Mint(*this) += rhs; }
	Mint operator-(const Mint &rhs) const { return Mint(*this) -= rhs; }
	Mint operator*(const Mint &rhs) const { return Mint(*this) *= rhs; }
	Mint operator/(const Mint &rhs) const { return Mint(*this) /= rhs; }
	bool operator<(const Mint &rhs) const { return x < rhs.x; }
	Mint inv() const {
		signed a = x, b = MOD, u = 1, v = 0, t;
		while (b) {
			t = a / b;
			a -= t * b;
			swap(a, b);
			u -= t * v;
			swap(u, v);
		}
		return Mint(u);
	}
	Mint operator^(uint64_t t) const {
		Mint e = *this, res = 1;
		for (; t; e *= e, t >>= 1)
			if (t & 1) res *= e;
		return res;
	}
};
template <int MOD> ostream &operator<<(ostream &os, const Mint<MOD> &rhs) { return os << rhs.x; }
template <int MOD> istream &operator>>(istream &is, Mint<MOD> &rhs) {
	int64_t s;
	is >> s;
	rhs = Mint<MOD>(s);
	return is;
};

using mint = Mint<mod>;
using vm = vector<mint>;
using vvm = vector<vm>;
using vvvm = vector<vvm>;

const int SET_FACT_MAX = 200000;
mint fact[SET_FACT_MAX];
mint revFact[SET_FACT_MAX];

void setFact() {
	const int N = SET_FACT_MAX;
	fact[0] = 1;
	for (int i = 1; i < N; i++) {
		fact[i] = fact[i - 1] * i;
	}
	revFact[N - 1] = fact[N - 1] ^ (mod - 2);
	for (int i = N - 2; i >= 0; i--) {
		revFact[i] = revFact[i + 1] * (i + 1);
	}
}
mint nPr(int n, int r) { return n >= r ? fact[n] * revFact[n - r] : 0; }
mint nCr(int n, int r) { return nPr(n, r) * revFact[r]; }
mint nHr(int n, int r) { return n == 0 && r == 0 ? 1 : nCr(n + r - 1, r); }

void Main() {
	setFact();
	int n = ri();

	mint ans = 1;
	rep(r, n) {
		ans += nCr(n, r) * (mint(r) ^ (n-r));
	}
	cout << ans << endl;
}

signed main() {
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	Main();
	return 0;
}
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