結果
問題 | No.995 タピオカオイシクナーレ |
ユーザー | rniya |
提出日時 | 2020-03-06 21:11:36 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 55 ms / 2,000 ms |
コード長 | 3,787 bytes |
コンパイル時間 | 1,650 ms |
コンパイル使用メモリ | 171,832 KB |
実行使用メモリ | 15,744 KB |
最終ジャッジ日時 | 2024-10-14 03:38:04 |
合計ジャッジ時間 | 3,452 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 10 ms
14,848 KB |
testcase_01 | AC | 10 ms
14,976 KB |
testcase_02 | AC | 10 ms
14,976 KB |
testcase_03 | AC | 10 ms
14,976 KB |
testcase_04 | AC | 10 ms
14,848 KB |
testcase_05 | AC | 10 ms
14,848 KB |
testcase_06 | AC | 11 ms
14,848 KB |
testcase_07 | AC | 10 ms
14,976 KB |
testcase_08 | AC | 10 ms
14,848 KB |
testcase_09 | AC | 10 ms
14,976 KB |
testcase_10 | AC | 11 ms
14,976 KB |
testcase_11 | AC | 11 ms
14,848 KB |
testcase_12 | AC | 11 ms
14,976 KB |
testcase_13 | AC | 11 ms
14,848 KB |
testcase_14 | AC | 10 ms
14,848 KB |
testcase_15 | AC | 11 ms
14,976 KB |
testcase_16 | AC | 53 ms
15,744 KB |
testcase_17 | AC | 53 ms
15,744 KB |
testcase_18 | AC | 55 ms
15,616 KB |
testcase_19 | AC | 53 ms
15,744 KB |
testcase_20 | AC | 54 ms
15,744 KB |
testcase_21 | AC | 53 ms
15,744 KB |
testcase_22 | AC | 54 ms
15,744 KB |
testcase_23 | AC | 53 ms
15,616 KB |
testcase_24 | AC | 52 ms
15,744 KB |
testcase_25 | AC | 52 ms
15,744 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; const long long MOD=1e9+7; template<uint_fast64_t Modulus> class modint{ using u64=uint_fast64_t; public: u64 a; constexpr modint(const u64 x=0) noexcept:a(((x%Modulus)+Modulus)%Modulus){} constexpr u64 &value() noexcept{return a;} constexpr const u64 &value() const noexcept{return a;} constexpr modint &operator+=(const modint &rhs) noexcept{ a+=rhs.a; if (a>=Modulus) a-=Modulus; return *this; } constexpr modint operator+(const modint &rhs) const noexcept{ return modint(*this)+=rhs; } constexpr modint &operator++() noexcept{ return ++a,*this; } constexpr modint operator++(int) noexcept{ modint t=*this; return ++a,t; } constexpr modint &operator-=(const modint &rhs) noexcept{ if (a<rhs.a) a+=Modulus; a-=rhs.a; return *this; } constexpr modint operator-(const modint &rhs) const noexcept{ return modint(*this)-=rhs; } constexpr modint &operator--() noexcept{ return --a,*this; } constexpr modint operator--(int) noexcept{ modint t=*this; return --a,t; } constexpr modint &operator*=(const modint &rhs) noexcept{ a=a*rhs.a%Modulus; return *this; } constexpr modint operator*(const modint &rhs) const noexcept{ return modint(*this)*=rhs; } constexpr modint &operator/=(modint rhs) noexcept{ u64 exp=Modulus-2; while(exp){ if (exp&1) *this*=rhs; rhs*=rhs; exp>>=1; } return *this; } constexpr modint operator/(const modint &rhs) const noexcept{ return modint(*this)/=rhs; } constexpr modint operator-() const noexcept{ return modint(Modulus-a); } constexpr bool operator==(const modint &rhs) const noexcept{ return a==rhs.a; } constexpr bool operator!=(const modint &rhs) const noexcept{ return a!=rhs.a; } constexpr bool operator!() const noexcept{return !a;} friend constexpr modint pow(modint rhs,long long exp) noexcept{ modint res{1}; while(exp){ if (exp&1) res*=rhs; rhs*=rhs; exp>>=1; } return res; } template<class T> friend constexpr modint operator+(T x,modint y) noexcept{ return modint(x)+y; } template<class T> friend constexpr modint operator-(T x,modint y) noexcept{ return modint(x)-y; } template<class T> friend constexpr modint operator*(T x,modint y) noexcept{ return modint(x)*y; } template<class T> friend constexpr modint operator/(T x,modint y) noexcept{ return modint(x)/y; } friend ostream &operator<<(ostream &s,const modint &rhs) noexcept { return s << rhs.a; } friend istream &operator>>(istream &s,modint &rhs) noexcept { u64 a; rhs=modint{(s >> a,a)}; return s; } }; using mint=modint<MOD>; const int MAX=5e5+10; vector<mint> fac(MAX),finv(MAX),inv(MAX); void COMinit(){ fac[0]=fac[1]=1; finv[0]=finv[1]=1; inv[1]=1; for (int i=2;i<MAX;++i){ fac[i]=fac[i-1]*i; inv[i]=-inv[MOD%i]*(MOD/i); finv[i]=finv[i-1]*inv[i]; } } mint COM(int n,int k){ if (n<k||n<0||k<0) return 0; return fac[n]*finv[k]*finv[n-k]; } //Be careful with the value of MAX and conducting COMinit() int main(){ cin.tie(0); ios::sync_with_stdio(false); int N,M; long long K; mint p,q; cin >> N >> M >> K >> p >> q; vector<long long> b(N); for (int i=0;i<N;++i) cin >> b[i]; mint ans=0; for (int i=0;i<N;++i){ if (i<M) ans+=b[i]*(1+pow(1-2*p/q,K))/2; else ans+=b[i]*(1-pow(1-2*p/q,K))/2; } cout << ans << '\n'; }