結果
問題 | No.1706 Many Bus Stops (hard) |
ユーザー | moririn2528_c |
提出日時 | 2021-10-08 22:37:40 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 13,450 bytes |
コンパイル時間 | 1,535 ms |
コンパイル使用メモリ | 120,292 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-23 05:38:25 |
合計ジャッジ時間 | 2,727 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 1 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,944 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 1 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,940 KB |
testcase_21 | AC | 2 ms
6,940 KB |
testcase_22 | AC | 2 ms
6,940 KB |
testcase_23 | AC | 2 ms
6,944 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,944 KB |
testcase_26 | AC | 2 ms
6,944 KB |
testcase_27 | AC | 2 ms
6,940 KB |
testcase_28 | AC | 2 ms
6,944 KB |
testcase_29 | AC | 2 ms
6,940 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 2 ms
6,940 KB |
testcase_33 | AC | 2 ms
6,944 KB |
testcase_34 | AC | 2 ms
6,944 KB |
testcase_35 | AC | 2 ms
6,944 KB |
testcase_36 | AC | 2 ms
6,940 KB |
testcase_37 | AC | 2 ms
6,940 KB |
testcase_38 | AC | 2 ms
6,944 KB |
testcase_39 | AC | 2 ms
6,944 KB |
testcase_40 | AC | 2 ms
6,944 KB |
testcase_41 | AC | 2 ms
6,940 KB |
testcase_42 | AC | 1 ms
6,940 KB |
ソースコード
#include<iostream> #include<cstdio> #include<cstring> #include<string> #include<vector> #include<cmath> #include<algorithm> #include<map> #include<queue> #include<deque> #include<iomanip> #include<tuple> #include<cassert> #include<set> #include<complex> #include<numeric> #include<functional> #include<unordered_map> #include<unordered_set> using namespace std; typedef long long int LL; typedef pair<int,int> P; typedef pair<LL,LL> LP; const int INF=1<<30; const LL MAX=1e9+7; void array_show(int *array,int array_n,char middle=' '){ for(int i=0;i<array_n;i++)printf("%d%c",array[i],(i!=array_n-1?middle:'\n')); } void array_show(LL *array,int array_n,char middle=' '){ for(int i=0;i<array_n;i++)printf("%lld%c",array[i],(i!=array_n-1?middle:'\n')); } void array_show(vector<int> &vec_s,int vec_n=-1,char middle=' '){ if(vec_n==-1)vec_n=vec_s.size(); for(int i=0;i<vec_n;i++)printf("%d%c",vec_s[i],(i!=vec_n-1?middle:'\n')); } void array_show(vector<LL> &vec_s,int vec_n=-1,char middle=' '){ if(vec_n==-1)vec_n=vec_s.size(); for(int i=0;i<vec_n;i++)printf("%lld%c",vec_s[i],(i!=vec_n-1?middle:'\n')); } template<typename T> ostream& operator<<(ostream& os,const vector<T>& v1){ int n=v1.size(); for(int i=0;i<n;i++){ if(i)os<<" "; os<<v1[i]; } 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 T> istream& operator>>(istream& is,vector<T>& v1){ int n=v1.size(); for(int i=0;i<n;i++)is>>v1[i]; return is; } template<typename T1,typename T2> istream& operator>>(istream& is,pair<T1,T2>& p){ is>>p.first>>p.second; return is; } template<typename T>T ext_gcd(T a,T b,T& x,T& y){ //ax+by=gcd(a,b) if(a<b)return ext_gcd(b,a,y,x); if(b==0){ x=1,y=0; return a; } T gcd_val=ext_gcd(b,a%b,x,y); swap(x,y); y-=x*(a/b); if(x>b)y+=(x/b)*a,x%=b; if(y>a)x+=(y/a)*b,y%=a; return gcd_val; } template<long long int mod,bool prime=false>class modint{ private: typedef long long int ll; ll val; ll gcd(ll a,ll b){ if(a<b)swap(a,b); if(b==0)return a; return gcd(b,a%b); } public: modint():val(0){} template<class T>modint(T a){ val=(ll)a%mod; if(val<0)val+=mod; } ll value()const{return val;} ll get_mod()const{return mod;} modint& operator++(){ val++; if(val==mod)val=0; return *this; } modint operator++(int){ modint ans=*this; ++*this; return ans; } modint& operator--(){ if(val==0)val=mod; val--; return *this; } modint operator--(int){ modint ans=*this; --*this; return ans; } modint& operator+=(const modint& a){ val+=a.value(); if(val>=mod)val-=mod; return *this; } modint& operator-=(const modint& a){ val-=a.value(); if(val<0)val+=mod; return *this; } modint& operator*=(const modint& a){ val*=a.value(); if(val>=mod)val%=mod; return *this; } modint pow(ll index)const{ assert(index>=0); if(prime && index>=mod-1)index%=mod-1; modint a=*this,ans=1; for(ll i=1;i>=0 && i<=index;i<<=1){ if(index&i)ans*=a; a*=a; } return ans; } modint inverse()const{ if(prime){ assert(val!=0); return pow(mod-2); } ll x,y; ll g=ext_gcd<ll>(val,mod,x,y); assert(g==1); return x; } modint& operator/=(const modint& a){ if(prime){ *this=(*this)*a.inverse(); return *this; } ll g=gcd(val,a.value()); modint a2=a.value()/g; val/=g; *this=(*this)*a2.inverse(); return *this; } friend modint operator-(const modint& a,const modint& b){return (modint)a-=b;} friend modint operator+(const modint& a,const modint& b){return (modint)a+=b;} friend modint operator*(const modint& a,const modint& b){return (modint)a*=b;} friend modint operator/(const modint& a,const modint& b){return (modint)a/=b;} friend bool operator==(const modint& a,const modint& b){return a.value()==b.value();} friend bool operator!=(const modint& a,const modint& b){return a.value()!=b.value();} friend modint pow(const modint& a,const ll b){return a.pow(b);} modint operator+() const{return *this;} modint operator-() const{return modint()-*this;} friend ostream& operator<<(ostream& os,const modint& a){ os<<a.value(); return os; } friend istream& operator>>(istream& is,modint& a){ ll val; is>>val; a=val; return is; } }; using mint=modint<1'000'000'007,true>; using modint109=modint<1'000'000'009,true>; using modint998=modint<998'244'353,true>; template<typename T> class Matrix{ private: typedef long long int ll; T zero=0,e=1; vector<vector<T>> vec_matrix; void init(int n,int m); function<bool(T,T)> same=[](T a,T b){return a==b;}; //function<bool(T,T)> same=[](T a,T b){return (a-b)<=1e-9;}; Matrix gauss_and_inverse(int mode)const; public: Matrix(int n); Matrix(int n,int m); Matrix(vector<vector<T>>& ma); int sizeX() const; int sizeY() const; bool valid() const; T& element(int a,int b); const vector<vector<T>>& get_vec()const; void set_same_function(function<bool(T,T)> _same){same=_same;} void E(); void E(int n); Matrix& operator += (const Matrix& mat_a); Matrix& operator -= (const Matrix& mat_a); Matrix& operator *= (const Matrix& mat_a); friend Matrix operator +(const Matrix& mat_a,const Matrix& mat_b){return (Matrix)mat_a+=mat_b;} friend Matrix operator -(const Matrix& mat_a,const Matrix& mat_b){return (Matrix)mat_a-=mat_b;} friend Matrix operator *(const Matrix& mat_a,const Matrix& mat_b){return (Matrix)mat_a*=mat_b;} Matrix operator+() const{return *this;} Matrix operator-() const{return Matrix()-*this;} Matrix& operator %= (const T mod); Matrix pow_mod(ll m,ll mod=1e9+7)const; Matrix pow(ll m)const; T tr()const; Matrix gauss()const; T det()const; Matrix inverse()const; Matrix submatrix(int a,int b,int c,int d)const;//[a,c)*[b,d) }; template<typename T> void Matrix<T>::init(int n,int m){ vec_matrix.assign(n,vector<T>(m,zero)); } template<typename T> bool Matrix<T>::valid() const{ int n=sizeX(),m=sizeY(); for(int i=0;i<n;i++){ if((int)vec_matrix[i].size()!=m)return false; } return true; } template<typename T> Matrix<T>::Matrix(int n){ init(n,n); } template<typename T> Matrix<T>::Matrix(int n,int m){ init(n,m); } template<typename T> Matrix<T>::Matrix(vector<vector<T>>& ma):vec_matrix(ma){ assert(valid()); }; template<typename T> int Matrix<T>::sizeX() const{ return vec_matrix.size(); } template<typename T> int Matrix<T>::sizeY() const{ if(vec_matrix.empty())return 0; return vec_matrix[0].size(); } template<typename T> void Matrix<T>::E(){ assert(sizeX()==sizeY()); int n=sizeX(); int i,j; for(i=0;i<n;i++){ for(j=0;j<n;j++){ vec_matrix[i][j]=(i==j)?e:zero; } } } template<typename T> void Matrix<T>::E(int n){ init(n,n); E(); } template<typename T> Matrix<T>& Matrix<T>::operator += (const Matrix<T>& mat){ const vector<vector<T>>& vec_mat=mat.get_vec; assert(sizeX()==mat.sizeX() && sizeY()==mat.sizeY()); int i,j; int n=sizeX(),m=sizeY(); for(i=0;i<n;i++){ for(j=0;j<m;j++){ vec_matrix[i][j]+=vec_mat[i][j]; } } return *this; } template<typename T> Matrix<T>& Matrix<T>::operator -= (const Matrix<T>& mat){ const vector<vector<T>>& vec_mat=mat.get_vec; assert(sizeX()==mat.sizeX() && sizeY()==mat.sizeY()); int i,j; int n=sizeX(),m=sizeY(); for(i=0;i<n;i++){ for(j=0;j<m;j++){ vec_matrix[i][j]-=vec_mat[i][j]; } } return *this; } template<typename T> Matrix<T>& Matrix<T>::operator *= (const Matrix<T>& mat){ const vector<vector<T>>& vec_mat=mat.get_vec(); assert(mat.sizeX()==sizeY()); int i,j,k; int n=sizeX(),m=mat.sizeY(),p=sizeY(); vector<vector<T>> vec_mats(n,vector<T>(m,zero)); for(i=0;i<n;i++){ for(k=0;k<p;k++){ for(j=0;j<m;j++){ vec_mats[i][j]+=vec_matrix[i][k]*vec_mat[k][j]; } } } vec_matrix=vec_mats; return *this; } template<typename T> Matrix<T>& Matrix<T>::operator %= (const T mod){ for(auto& vm:vec_matrix){ for(auto& num:vm){ if(num>=mod)num%=mod; } } return *this; } template<typename T> vector<T> operator *(const Matrix<T>& mat,const vector<T>& v1){ const vector<vector<T>>& vec_mat=mat.get_vec(); assert(!vec_mat.empty() && vec_mat[0].size()==v1.size()); int n=vec_mat.size(),m=vec_mat[0].size(); vector<T> vs(n); int i,j; for(i=0;i<n;i++){ for(j=0;j<m;j++){ vs[i]+=vec_mat[i][j]*v1[j]; } } return vs; } template<typename T> istream& operator >> (istream& is,Matrix<T>& a){ assert(a.valid()); int n=a.sizeX(),m=a.sizeY(); int i,j; for(i=0;i<n;i++){ for(j=0;j<m;j++){ is>>a.element(i,j); } } return is; } template<typename T> ostream& operator << (ostream& os,Matrix<T>& a){ assert(a.valid()); int n=a.sizeX(),m=a.sizeY(); int i,j; for(i=0;i<n;i++){ for(j=0;j<m;j++){ if(j)cout<<" "; os<<a.element(i,j); } os<<endl; } return os; } template<typename T> Matrix<T> Matrix<T>::pow_mod(ll m,ll mod)const{ assert(sizeX()==sizeY()); ll p_b=1; Matrix<T> ms(sizeX()); ms.E(); for(;p_b<=m;p_b<<=1); for(p_b>>=1;p_b>0;p_b>>=1){ ms*=ms; ms%=mod; if(m&p_b)ms*=(*this); ms%=mod; } return ms; } template<typename T> Matrix<T> Matrix<T>::pow(ll m)const{ assert(sizeX()==sizeY()); Matrix<T> ms(sizeX()),ma=*this; ms.E(); for(int i=0;(1LL<<i)<=m;i++){ if(m&1LL<<i)ms*=ma; ma*=ma; } return ms; } template<typename T> T& Matrix<T>::element(int a,int b){ assert(0<=a && a<sizeX() && 0<=b && b<sizeY()); return vec_matrix[a][b]; } template<typename T> const vector<vector<T>>& Matrix<T>::get_vec() const{ return vec_matrix; } template<typename T> T Matrix<T>::tr()const{ assert(sizeX()==sizeY()); int n=sizeX(); T a=e; for(int i=0;i<n;i++){ a*=vec_matrix[i][i]; } return a; } template<typename T> Matrix<T> Matrix<T>::gauss_and_inverse(int mode)const{ //mode: 0: gauss triangle, 1: inverse int n=sizeX(),m=sizeY(); int i,j,k,l; vector<vector<T>> v=vec_matrix,inv(n,vector<T>(m)); if(mode==1){ assert(n==m); for(i=0;i<min(n,m);i++)inv[i][i]=e; } for(i=0,j=0;i<m;i++){ for(k=j;k<n;k++){ if(!same(v[k][i],zero))break; } if(k==n)continue; if(j<k){ //swap j_th and k_th row for(l=0;l<m;l++){ swap(v[j][l],v[k][l]); if(mode==1)swap(inv[j][l],inv[k][l]); } } for(k=j+1;k<n;k++){ T a=v[k][i]/v[j][i]; if(a==zero)continue; for(l=i+1;l<m;l++)v[k][l]-=v[j][l]*a; v[k][i]=zero; if(mode==1){ for(l=0;l<m;l++)inv[k][l]-=inv[j][l]*a; } } j++; } if(mode==0)return Matrix(v); //fix inverse for(i=n-1;i>=0;i--){ if(v[i][i]==zero)assert(false); for(j=0;j<i;j++){ T a=v[j][i]/v[i][i]; if(a==zero)continue; for(k=0;k<m;k++){ inv[j][k]-=inv[i][k]*a; } } for(k=0;k<m;k++){ inv[i][k]/=v[i][i]; } } return Matrix(inv); } template<typename T> Matrix<T> Matrix<T>::gauss()const{ return gauss_and_inverse(0); } template<typename T> T Matrix<T>::det()const{ assert(sizeX()==sizeY()); Matrix a=gauss(); T s=e; for(int i=0;i<sizeX();i++){ s*=a.element(i,i); } return s; } template<typename T> Matrix<T> Matrix<T>::inverse()const{ return gauss_and_inverse(1); } template<typename T> Matrix<T> Matrix<T>::submatrix(int a,int b,int c,int d)const{ //[a,c)*[b,d) assert(0<=a && a<c && c<=sizeX()); assert(0<=b && b<d && d<=sizeY()); Matrix<T> s(c-a,d-b); int i,j; for(i=0;i<c-a;i++){ for(j=0;j<d-b;j++){ s.element(i,j)=vec_matrix[a+i][b+j]; } } return s; } namespace sol{ void solve(){ int n,m,p; int i,j,k; int a,b,c; cin>>p>>n>>m; Matrix<mint> ma(4); ma.element(0,0)=(mint)1/p; ma.element(2,0)=(mint)(p-2)/p; ma.element(3,0)=(mint)1/p; ma.element(1,1)=(mint)1/p; ma.element(2,1)=(mint)(p-1)/p; ma.element(0,2)=1; ma.element(1,3)=1; ma=ma.pow(n); mint m1=1-ma.element(1,1); cout<<1-m1.pow(m)<<endl; } } int main(){ cin.tie(0); ios::sync_with_stdio(false); sol::solve(); }