結果
問題 | No.1001 注文の多い順列 |
ユーザー | rniya |
提出日時 | 2020-03-03 09:58:18 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 122 ms / 2,000 ms |
コード長 | 3,690 bytes |
コンパイル時間 | 1,900 ms |
コンパイル使用メモリ | 175,196 KB |
実行使用メモリ | 73,728 KB |
最終ジャッジ日時 | 2024-10-13 21:49:48 |
合計ジャッジ時間 | 4,417 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 1 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 1 ms
5,248 KB |
testcase_12 | AC | 2 ms
5,248 KB |
testcase_13 | AC | 2 ms
5,248 KB |
testcase_14 | AC | 2 ms
5,248 KB |
testcase_15 | AC | 3 ms
5,248 KB |
testcase_16 | AC | 2 ms
5,248 KB |
testcase_17 | AC | 2 ms
5,248 KB |
testcase_18 | AC | 94 ms
61,440 KB |
testcase_19 | AC | 90 ms
55,552 KB |
testcase_20 | AC | 57 ms
36,864 KB |
testcase_21 | AC | 50 ms
33,536 KB |
testcase_22 | AC | 112 ms
73,728 KB |
testcase_23 | AC | 113 ms
73,344 KB |
testcase_24 | AC | 116 ms
72,960 KB |
testcase_25 | AC | 112 ms
71,552 KB |
testcase_26 | AC | 118 ms
70,528 KB |
testcase_27 | AC | 119 ms
71,936 KB |
testcase_28 | AC | 122 ms
72,064 KB |
testcase_29 | AC | 108 ms
72,704 KB |
testcase_30 | AC | 104 ms
69,760 KB |
testcase_31 | AC | 109 ms
72,960 KB |
testcase_32 | AC | 107 ms
73,728 KB |
testcase_33 | AC | 120 ms
73,600 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>; int main(){ cin.tie(0); ios::sync_with_stdio(false); int N; cin >> N; vector<vector<int>> Xs(2); for (int i=0;i<N;++i){ int t,X; cin >> t >> X; Xs[t].emplace_back(--X); } vector<int> cnt0(N,0),cnt1(N,0); for (int i=0;i<N;++i){ for (int X:Xs[0]) cnt0[i]+=(i<=X); for (int X:Xs[1]) cnt1[i]+=(X<=i); } int s=Xs[0].size(),t=Xs[1].size(); vector<vector<mint>> dp(N+1,vector<mint>(N+1,0)); dp[0][0]=1; for (int i=0;i<N;++i){ for (int j=0;j<N;++j){ if (i<s) dp[i+1][j]+=dp[i][j]*(cnt0[i+j]-s+i+1); if (j<t) dp[i][j+1]+=dp[i][j]*(cnt1[i+j]-j); } } cout << dp[s][t] << '\n'; }