結果
問題 | No.2188 整数列コイントスゲーム |
ユーザー |
![]() |
提出日時 | 2023-01-13 22:27:15 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 4 ms / 2,000 ms |
コード長 | 41,418 bytes |
コンパイル時間 | 5,094 ms |
コンパイル使用メモリ | 292,764 KB |
最終ジャッジ日時 | 2025-02-10 02:47:13 |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
other | AC * 47 |
ソースコード
·#if !defined(MYLOCAL)//提出時用テンプレート#pragma GCC optimize("Ofast")#include "bits/stdc++.h"#if !defined(_MSC_VER) && __has_include(<atcoder/all>)#include <atcoder/all>using namespace atcoder;#endifusing namespace std;using ll=long long; using dd=double;using vll=vector< ll>; using vdd=vector< dd>;using vvll=vector< vll>; using vvdd=vector<vdd>;using vvvll=vector< vvll>; using vvvdd=vector<vvdd>;using vvvvll=vector<vvvll>;using pll=pair<ll,ll>; using tll=tuple<ll,ll,ll>; using qll=tuple<ll,ll,ll,ll>;using vpll=vector< pll>; using vtll=vector< tll>; using vqll=vector< qll>;using vvpll=vector<vpll>; using vvtll=vector<vtll>; using vvqll=vector<vqll>;using namespace chrono;constexpr ll INF = 1001001001001001001;struct Fast{ Fast(){ cin.tie(0); ios::sync_with_stdio(false); cout<<fixed<<setprecision(numeric_limits<double>::max_digits10); } } fast;#define REPS(i, S, E) for (ll i = (S); i <= (E); i++)#define REP(i, N) REPS(i, 0, (N)-1)#define DEPS(i, S, E) for (ll i = (E); i >= (S); i--)#define DEP(i, N) DEPS(i, 0, (N)-1)#define EXPAND( x ) x//VS用おまじない#define overload3(_1,_2,_3,name,...) name#define overload4(_1,_2,_3,_4,name,...) name#define overload5(_1,_2,_3,_4,_5,name,...) name#define rep3(i, S, E) for (ll i = (S); i <= (E); i++)#define rep4(i, S, E, t) for (ll i = (S); i <= (E); i+=(t))#define rep(...) EXPAND(overload4(__VA_ARGS__,rep4,rep3,_,_)(__VA_ARGS__))#define dep3(i, E, S) for (ll i = (E); i >= (S); i--)#define dep4(i, E, S, t) for (ll i = (E); i >= (S); i-=(t))#define dep(...) EXPAND(overload4(__VA_ARGS__, dep4, dep3,_,_)(__VA_ARGS__))#define each2(e,v) for (auto && e:v)#define each3(a,b,v) for (auto &&[a,b]:v)#define each4(a,b,c,v) for (auto &&[a,b,c]:v)#define each5(a,b,c,d,v) for (auto &&[a,b,c,d]:v)#define each(...) EXPAND(overload5(__VA_ARGS__,each5,each4,each3,each2,_)(__VA_ARGS__))#define ALL1(v) (v).begin(), (v).end()#define ALL2(v,E) (v).begin(), (v).begin()+((E)+1)#define ALL3(v,S,E) (v).begin()+(S), (v).begin()+((E)+1)#define ALL(...) EXPAND(overload3(__VA_ARGS__, ALL3, ALL2, ALL1)(__VA_ARGS__))#define all ALL#define RALL1(v) (v).rbegin(), (v).rend()#define RALL2(v,E) (v).rbegin(), (v).rbegin()+((E)+1)#define RALL3(v,S,E) (v).rbegin()+(S), (v).rbegin()+((E)+1)#define RALL(...) EXPAND(overload3(__VA_ARGS__, RALL3, RALL2, RALL1)(__VA_ARGS__))#define rall RALLtemplate<class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; }return false; }template<class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; }return false; }template<class T> inline T MaxE(vector<T>&v,ll S,ll E){ T m=v[S]; rep(i,S,E)chmax(m,v[i]); return m; }template<class T> inline T MinE(vector<T>&v,ll S,ll E){ T m=v[S]; rep(i,S,E)chmin(m,v[i]); return m; }template<class T> inline T MaxE(vector<T> &v) { return MaxE(v,0,(ll)v.size()-1); }template<class T> inline T MinE(vector<T> &v) { return MinE(v,0,(ll)v.size()-1); }template<class T> inline auto maxe(T &&v,ll S,ll E){ return *max_element(ALL(v,S,E)); }template<class T> inline auto maxe(T &&v){ return *max_element(ALL(v)); }template<class T> inline auto mine(T &&v,ll S,ll E){ return *min_element(ALL(v,S,E)); }template<class T> inline auto mine(T &&v){ return *min_element(ALL(v)); }template<class T> inline T Sum(vector<T> &v,ll S,ll E){ T s=T(); rep(i,S,E)s+=v[i]; return s; }template<class T> inline T Sum(vector<T> &v) { return Sum(v,0,v.size()-1); }template<class T,class U=typename remove_reference<T>::type::value_type>inline U sum(T &&v,ll S,ll E) {return accumulate(all(v,S,E),U());}template<class T> inline auto sum(T &&v) {return sum(v,0,v.end()-v.begin()-1);}template<class T> inline ll sz(T &&v){ return (ll)v.size(); }inline ll CEIL(ll a,ll b){ return (a<0) ? -(-a/b) : (a+b-1)/b; } //負もOKinline ll FLOOR(ll a,ll b){ return -CEIL(-a,b); } //負もOK//pair用テンプレートtemplate<class T,class S> inline pair<T,S>& operator+=(pair<T,S> &a,const pair<T,S> &b){ a.first+=b.first; a.second+=b.second; return a; }template<class T,class S> inline pair<T,S>& operator-=(pair<T,S> &a,const pair<T,S> &b){ a.first-=b.first; a.second-=b.second; return a; }template<class T,class S> inline pair<T,S>& operator*=(pair<T,S> &a,const pair<T,S> &b){ a.first*=b.first; a.second*=b.second; return a; }template<class T,class S> inline pair<T,S>& operator/=(pair<T,S> &a,const pair<T,S> &b){ a.first/=b.first; a.second/=b.second; return a; }template<class T,class S> inline pair<T,S>& operator%=(pair<T,S> &a,const pair<T,S> &b){ a.first%=b.first; a.second%=b.second; return a; }template<class T,class S,class R> inline pair<T,S>& operator+=(pair<T,S> &a,R b){ a.first+=b; a.second+=b; return a; }template<class T,class S,class R> inline pair<T,S>& operator-=(pair<T,S> &a,R b){ a.first-=b; a.second-=b; return a; }template<class T,class S,class R> inline pair<T,S>& operator*=(pair<T,S> &a,R b){ a.first*=b; a.second*=b; return a; }template<class T,class S,class R> inline pair<T,S>& operator/=(pair<T,S> &a,R b){ a.first/=b; a.second/=b; return a; }template<class T,class S,class R> inline pair<T,S>& operator%=(pair<T,S> &a,R b){ a.first%=b; a.second%=b; return a; }template<class T,class S,class R> inline pair<T,S> operator+(const pair<T,S> &a,R b){ pair<T,S> c=a; return c+=b; }template<class T,class S,class R> inline pair<T,S> operator-(const pair<T,S> &a,R b){ pair<T,S> c=a; return c-=b; }template<class T,class S,class R> inline pair<T,S> operator*(const pair<T,S> &a,R b){ pair<T,S> c=a; return c*=b; }template<class T,class S,class R> inline pair<T,S> operator/(const pair<T,S> &a,R b){ pair<T,S> c=a; return c/=b; }template<class T,class S,class R> inline pair<T,S> operator%(const pair<T,S> &a,R b){ pair<T,S> c=a; return c%=b; }template<class T,class S,class R> inline pair<T,S> operator-(R b,const pair<T,S> &a){ pair<T,S> c=-a; return c+=b; }template<class T,class S> inline pair<T,S> operator-(const pair<T,S> &a,const pair<T,S> &b){ pair<T,S> c=a; return c-=b; }template<class T,class S> inline pair<T,S> operator-(const pair<T,S> &a){ pair<T,S> c=a; return c*=(-1); }template<class T,class S> inline ostream &operator<<(ostream &os,const pair<T,S> &a){ return os << a.first << ' ' << a.second; }//tuple用テンプレート 出力用のみtemplate<class T,class S,class R> inline ostream &operator<<(ostream &os,const tuple<T,S,R> &a){ return os << get<0>(a) << ' ' << get<1>(a) << ' ' <<get<2>(a); }template<class T,class S,class R,class Q> inline ostream &operator<<(ostream &os,const tuple<T,S,R,Q> &a){ return os << get<0>(a) << ' ' << get<1>(a)<< ' ' << get<2>(a) << ' ' << get<3>(a); }//vector用テンプレートtemplate<class T> inline vector<T>& operator+=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]+=b[i]; return a; }template<class T> inline vector<T>& operator-=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]-=b[i]; return a; }template<class T> inline vector<T>& operator*=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]*=b[i]; return a; }template<class T> inline vector<T>& operator/=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]/=b[i]; return a; }template<class T> inline vector<T>& operator%=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]%=b[i]; return a; }template<class T,class S> inline vector<T>& operator+=(vector<T> &a,S b){ for (T &e: a) e+=b; return a; }template<class T,class S> inline vector<T>& operator-=(vector<T> &a,S b){ for (T &e: a) e-=b; return a; }template<class T,class S> inline vector<T>& operator*=(vector<T> &a,S b){ for (T &e: a) e*=b; return a; }template<class T,class S> inline vector<T>& operator/=(vector<T> &a,S b){ for (T &e: a) e/=b; return a; }template<class T,class S> inline vector<T>& operator%=(vector<T> &a,S b){ for (T &e: a) e%=b; return a; }template<class T,class S> inline vector<T> operator+(const vector<T> &a,S b){ vector<T> c=a; return c+=b; }template<class T,class S> inline vector<T> operator-(const vector<T> &a,S b){ vector<T> c=a; return c-=b; }template<class T,class S> inline vector<T> operator*(const vector<T> &a,S b){ vector<T> c=a; return c*=b; }template<class T,class S> inline vector<T> operator/(const vector<T> &a,S b){ vector<T> c=a; return c/=b; }template<class T,class S> inline vector<T> operator%(const vector<T> &a,S b){ vector<T> c=a; return c%=b; }template<class T,class S> inline vector<T> operator-(S b,const vector<T> &a){ vector<T> c=-a; return c+=b; }template<class T> inline vector<T> operator-(const vector<T> &a,const vector<T> &b){ vector<T> c=a; return c-=b; }template<class T> inline vector<T> operator-(const vector<T> &a){ vector<T> c=a; return c*=(-1); }template<class T> inline ostream &operator<<(ostream &os,const vector<T> &a){ for (ll i=0; i<(ll)a.size(); i++) os<<(i>0?" ":"")<<a[i]; return os; }//array用テンプレートtemplate<class T,size_t S> inline array<T,S>& operator+=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]+=b[i]; return a; }template<class T,size_t S> inline array<T,S>& operator-=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]-=b[i]; return a; }template<class T,size_t S> inline array<T,S>& operator*=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]*=b[i]; return a; }template<class T,size_t S> inline array<T,S>& operator/=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]/=b[i]; return a; }template<class T,size_t S> inline array<T,S>& operator%=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]%=b[i]; return a; }template<class T,size_t S,class R> inline array<T,S>& operator+=(array<T,S> &a,R b){ for (T &e: a) e+=b; return a; }template<class T,size_t S,class R> inline array<T,S>& operator-=(array<T,S> &a,R b){ for (T &e: a) e-=b; return a; }template<class T,size_t S,class R> inline array<T,S>& operator*=(array<T,S> &a,R b){ for (T &e: a) e*=b; return a; }template<class T,size_t S,class R> inline array<T,S>& operator/=(array<T,S> &a,R b){ for (T &e: a) e/=b; return a; }template<class T,size_t S,class R> inline array<T,S>& operator%=(array<T,S> &a,R b){ for (T &e: a) e%=b; return a; }template<class T,size_t S,class R> inline array<T,S> operator+(const array<T,S> &a,R b){ array<T,S> c=a; return c+=b; }template<class T,size_t S,class R> inline array<T,S> operator-(const array<T,S> &a,R b){ array<T,S> c=a; return c-=b; }template<class T,size_t S,class R> inline array<T,S> operator*(const array<T,S> &a,R b){ array<T,S> c=a; return c*=b; }template<class T,size_t S,class R> inline array<T,S> operator/(const array<T,S> &a,R b){ array<T,S> c=a; return c/=b; }template<class T,size_t S,class R> inline array<T,S> operator%(const array<T,S> &a,R b){ array<T,S> c=a; return c%=b; }template<class T,size_t S,class R> inline array<T,S> operator-(R b,const array<T,S> &a){ array<T,S> c=-a; return c+=b; }template<class T,size_t S> inline array<T,S> operator-(const array<T,S> &a,const array<T,S> &b){ array<T,S> c=a; return c-=b; }template<class T,size_t S> inline array<T,S> operator-(const array<T,S> &a){ array<T,S> c=a; return c*=(-1); }template<class T,size_t S> inline ostream &operator<<(ostream &os,const array<T,S> &a){ for (ll i=0; i<(ll)S; i++) os<<(i>0?" ":"")<<a[i]; return os; }template<class T,size_t S,class R> struct view1d;template<class T,size_t S,class R> struct view1dIter{view1d<T,S,R> *vw=nullptr;ll idx=INF;view1dIter(){}view1dIter(view1d<T,S,R> *vw_,ll idx_):vw(vw_),idx(idx_){}view1dIter(const view1dIter<T,S,R> &it):vw(it.vw),idx(it.idx){}R &operator*() { return (*vw)[idx]; }R &operator*() const{ return (*vw)[idx]; }R &operator[](ll i) { return (*vw)[idx+i]; }R &operator[](ll i)const{ return (*vw)[idx+i]; }auto &operator++(){ idx++; return *this; }auto &operator--(){ idx--; return *this; }auto operator++(int){ auto it=*this; idx++; return it; }auto operator--(int){ auto it=*this; idx--; return it; }auto &operator+=(ll n){ idx+=n; return *this; }auto &operator-=(ll n){ idx-=n; return *this; }auto operator+(ll n){ auto it=*this; return it+=n; }auto operator-(ll n){ auto it=*this; return it-=n; }ll operator- (const view1dIter<T,S,R> &it)const{ return idx- it.idx; }bool operator< (const view1dIter<T,S,R> &it)const{ return idx< it.idx; }bool operator> (const view1dIter<T,S,R> &it)const{ return idx> it.idx; }bool operator<=(const view1dIter<T,S,R> &it)const{ return idx<=it.idx; }bool operator>=(const view1dIter<T,S,R> &it)const{ return idx>=it.idx; }bool operator!=(const view1dIter<T,S,R> &it)const{ return idx!=it.idx; }bool operator==(const view1dIter<T,S,R> &it)const{ return idx==it.idx; }using iterator_category = random_access_iterator_tag;using value_type = R;using difference_type = ll;using pointer = R*;using reference = R&;};template<class T,size_t S,class R> struct view1d{using Sll=array<ll,S>;T &data; //参照先データSll dsize; //参照先データ各軸のサイズSll s=Sll(); //view先頭Sll d=Sll(); //view方向ll len; //view長さR &dummy; //範囲外の値参照R dummyj=R(); //範囲外の値実体/*---- コンストラクタ ----*/view1d(T &v): data(v),dummy(dummyj){SetDsize(v,dsize);d[S-1]=1;len=dsize[S-1];}//このコンストラクタは、マイナス座標指定を末尾にしない(暫定)//代入時Array<ll,2>{...}等と書くため、使い勝手悪い。将来廃止するかも。view1d(T &v,Sll s,Sll e,Sll d): data(v),s(s),d(d),len(Len(s,e,d)),dummy(dummyj){SetDsize(v,dsize);}view1d(T &v,Sll s,Sll d,ll len,R &dmy_): data(v),s(s),d(d),len(len),dummy(dmy_){SetDsize(v,dsize);}/*---- 演算 ----*/template<class Q> auto &operator =(const Q &b){ rep(i,0,len-1) (*this)[i] =b; return *this; }template<class Q> auto &operator+=(const Q &b){ rep(i,0,len-1) (*this)[i]+=b; return *this; }template<class Q> auto &operator-=(const Q &b){ rep(i,0,len-1) (*this)[i]-=b; return *this; }template<class Q> auto &operator*=(const Q &b){ rep(i,0,len-1) (*this)[i]*=b; return *this; }template<class Q> auto &operator/=(const Q &b){ rep(i,0,len-1) (*this)[i]/=b; return *this; }template<class Q> auto &operator%=(const Q &b){ rep(i,0,len-1) (*this)[i]%=b; return *this; }auto &operator =(const string &b){ return CpSeq(b); }template<size_t Q> auto &operator =(const char (&b)[Q]){ return *this=string(b); }template<class Q> auto &operator =(const vector<Q> &b){ return CpSeq(b); }template<class Q> auto &operator+=(const vector<Q> &b){ return PlSeq(b); }template<class Q> auto &operator-=(const vector<Q> &b){ return MnSeq(b); }template<class Q> auto &operator*=(const vector<Q> &b){ return PrSeq(b); }template<class Q> auto &operator/=(const vector<Q> &b){ return DvSeq(b); }template<class Q> auto &operator%=(const vector<Q> &b){ return RmSeq(b); }template<class Q,size_t P,class O> auto &operator =(const view1d<Q,P,O> &b){ return CpSeq(b); }template<class Q,size_t P,class O> auto &operator+=(const view1d<Q,P,O> &b){ return PlSeq(b); }template<class Q,size_t P,class O> auto &operator-=(const view1d<Q,P,O> &b){ return MnSeq(b); }template<class Q,size_t P,class O> auto &operator*=(const view1d<Q,P,O> &b){ return PrSeq(b); }template<class Q,size_t P,class O> auto &operator/=(const view1d<Q,P,O> &b){ return DvSeq(b); }template<class Q,size_t P,class O> auto &operator%=(const view1d<Q,P,O> &b){ return RmSeq(b); }template<class Q> auto &CpSeq(const Q &b){ rep(i,0,min(sz(b),len)-1) (*this)[i] =b[i]; return *this; }template<class Q> auto &PlSeq(const Q &b){ rep(i,0,min(sz(b),len)-1) (*this)[i]+=b[i]; return *this; }template<class Q> auto &MnSeq(const Q &b){ rep(i,0,min(sz(b),len)-1) (*this)[i]-=b[i]; return *this; }template<class Q> auto &PrSeq(const Q &b){ rep(i,0,min(sz(b),len)-1) (*this)[i]*=b[i]; return *this; }template<class Q> auto &DvSeq(const Q &b){ rep(i,0,min(sz(b),len)-1) (*this)[i]/=b[i]; return *this; }template<class Q> auto &RmSeq(const Q &b){ rep(i,0,min(sz(b),len)-1) (*this)[i]%=b[i]; return *this; }//template<class Q,class P> static bool eq(const Q &a,const P &b){// return equals(ALL(a),ALL(b));//}template<class Q,class P> static bool eq(const Q &a,const P &b){if ((ll)a.size()!=(ll)b.size()) return false;rep(i,0,(ll)a.size()-1){if (a[i]!=b[i]) return false;}return true;}template<class Q,class P> static bool lt(const Q &a,const P &b){ll n=min((ll)a.size(),(ll)b.size());rep(i,0,n-1){if (a[i]<b[i])return true;if (a[i]>b[i])return false;}return (ll)a.size()<(ll)b.size();}template<class Q,size_t P,class O> bool operator==( const view1d<Q,P,O> &b){ return eq(*this,b); }template<class Q> bool operator==( const Q &b){ return eq(*this,b); }template<class Q> friend bool operator==(const Q &a,const view1d<T,S,R> &b){ return eq( a,b); }template<size_t Q> bool operator==( const char (&b)[Q]){ return eq(*this,string(b)); }template<class Q,size_t P,class O> bool operator!=( const view1d<Q,P,O> &b){ return !(*this==b); }template<class Q> bool operator!=( const Q &b){ return !(*this==b); }template<class Q> friend bool operator!=(const Q &a,const view1d<T,S,R> &b){ return !( a==b); }template<class Q,size_t P,class O> bool operator< ( const view1d<Q,P,O> &b){ return lt(*this,b); }template<class Q> bool operator< ( const Q &b){ return lt(*this,b); }template<class Q> friend bool operator< (const Q &a,const view1d<T,S,R> &b){ return lt( a,b); }template<class Q,size_t P,class O> bool operator> ( const view1d<Q,P,O> &b){ return lt(b,*this); }template<class Q> bool operator> ( const Q &b){ return lt(b,*this); }template<class Q> friend bool operator> (const Q &a,const view1d<T,S,R> &b){ return lt(b,a ); }template<class Q,size_t P,class O> bool operator<=( const view1d<Q,P,O> &b){ return !(*this>b); }template<class Q> bool operator<=( const Q &b){ return !(*this>b); }template<class Q> friend bool operator<=(const Q &a,const view1d<T,S,R> &b){ return !( a>b); }template<class Q,size_t P,class O> bool operator>=( const view1d<Q,P,O> &b){ return !(*this<b); }template<class Q> bool operator>=( const Q &b){ return !(*this<b); }template<class Q> friend bool operator>=(const Q &a,const view1d<T,S,R> &b){ return !( a<b); }/*---- getter ----*/ll size() const { return len; }R &operator[](ll i){ return const_cast<R&>(OrgAt(s+d*i)); }const R &operator[](ll i) const { return OrgAt(s+d*i); }R &at(ll i){ if(i<0)i+=len; return (*this)[i]; }//vector<R> tov(){ vector<R> vvv(len); rep(i,0,len-1) vvv[i]=(*this)[i]; return vvv; }operator vector<R>(){ vector<R> v(len); rep(i,0,len-1) v[i]=(*this)[i]; return v; }bool contains(R a){ rep(i,0,len-1) if((*this)[i]==a)return true; return false; }auto begin(){ return view1dIter<T,S,R>(this,0); }auto end(){ return view1dIter<T,S,R>(this,len); }/*---- view設定 ----*/view1d<T,S,R> &dmy(R dmy_) { dummy=dmy_; return *this; }//ダミー値セットtemplate<class...Q> view1d<T,S,R> &st(Q... s_){//始点set 負は末尾からの位置this->s=RevIfNeg(SllD(s_...));this->len=AutoLen(this->s,this->d,this->dsize);return *this;}template<class...Q> view1d<T,S,R> &en(Q... e_){//終了条件再設定 負は末尾からthis->len=Len(s, RevIfNeg(SllD(e_...)), d);return *this;}template<class...Q> view1d<T,S,R> &dir(Q... d_){//方向set、長さはdata端までthis->d=SllD(d_...);this->len=AutoLen(this->s,this->d,this->dsize);return *this;}template<class...Q>view1d<T,S,R> &mv(Q... s_){ this->s+=SllD(s_...); return *this; }//平行移動view1d<T,S,R> &size(ll len_) { len=len_; return *this; }//長さsettemplate<class Q> view1d<T,S,R> &size(Q &v){ len=(ll)v.size(); return *this; }//長さsetview1d<T,S,R> &rev() { s+=d*(len-1); d*=-1; return *this; }//反転/*---- utility ----*/template<class Q> inline static ll sz(Q &v){ return (ll)v.size(); }Sll RevIfNeg(Sll pos){//!< 負なら末尾からの位置に変換rep(i,0,S-1) if (pos[i]<0) pos[i]+=dsize[i];return pos;}static ll AutoLen(Sll s_,Sll d_,Sll dsz){//位置s_から方向d_ではみ出すまでの長さSll e=dsz-1;rep(i,0,S-1) e[i] *= (d_[i]>=0);//方向が負の軸を0にするreturn Len(s_,e,d_);}/*---- 先頭位置s、方向d、終了条件eから長さlen計算 ----*///template<size_t Q> static ll Len(array<ll,Q> s,array<ll,Q> e,array<ll,Q> d){// ll ret=INF;// rep(i,0,Q-1) chmin(ret, Len1(s[i],e[i],d[i]));// return ret;//}static ll Len(Sll s,Sll e,Sll d){ll ret=INF;rep(i,0,S-1) chmin(ret, Len1(s[i],e[i],d[i]));return ret;}static ll Len1(ll s,ll e,ll d){if (d==0) return INF;if (d<0){ s=-s; e=-e; d=-d; }if (s>e) return 0;return (e-s)/d+1;}/*---- 可変長引数をSllに変換 ----*/template<class...Q> static Sll SllD(Q... args){ return SllRec(0,args...); }template<class...Q> static Sll SllRec(ll i,ll first,Q... rest) {Sll sll = (i==S-1) ? Sll() : SllRec(i+1,rest...);sll[i]=first;return sll;}static Sll SllRec(ll i){ return Sll(); }/*---- dataの位置posの値取得 ----*/const R &OrgAt(Sll pos) const {rep(i,0,S-1){if (pos[i]<0 || dsize[i]<=pos[i]) return dummy;}return OrgAt_(data,pos);}template<class Q> using V = vector<Q>;template<class Q> using VV = V<V<Q>>;template<class Q> using VVV = V<V<V<Q>>>;using Vs = V<string>;using VVs = VV<string>;using ll1 = array<ll,1>;using ll2 = array<ll,2>;using ll3 = array<ll,3>;auto &OrgAt_(V<R> &dat,ll1 pos)const{ auto [i] =pos; return dat[i]; }auto &OrgAt_(string &dat,ll1 pos)const{ auto [i] =pos; return dat[i]; }auto &OrgAt_(VV<R> &dat,ll2 pos)const{ auto [i,j] =pos; return dat[i][j]; }auto &OrgAt_(Vs &dat,ll2 pos)const{ auto [i,j] =pos; return dat[i][j]; }auto &OrgAt_(VVV<R> &dat,ll3 pos)const{ auto [i,j,k]=pos; return dat[i][j][k]; }auto &OrgAt_(VVs &dat,ll3 pos)const{ auto [i,j,k]=pos; return dat[i][j][k]; }/*---- dataの各軸size取得 ----*/static void SetDsize(V<R> &dat,ll1 &dsz){ dsz={sz(dat)}; }static void SetDsize(string &dat,ll1 &dsz){ dsz={sz(dat)}; }static void SetDsize(VV<R> &dat,ll2 &dsz){ dsz={sz(dat),sz(dat[0])}; }static void SetDsize(Vs &dat,ll2 &dsz){ dsz={sz(dat),sz(dat[0])}; }static void SetDsize(VVV<R> &dat,ll3 &dsz){ dsz={sz(dat),sz(dat[0]),sz(dat[0][0])}; }static void SetDsize(VVs &dat,ll3 &dsz){ dsz={sz(dat),sz(dat[0]),sz(dat[0][0])}; }typedef view1dIter<T,S,R> iterator;using value_type = R;};template<class Q> using V = vector<Q>;template<class Q> using VV = V<V<Q>>;template<class Q> using VVV = V<V<V<Q>>>;template<class T> view1d( VVV<T> ) -> view1d< VVV<T>,3,T>;template<class T> view1d( VV<T> ) -> view1d< VV<T>,2,T>;template<class T> view1d( V<T> ) -> view1d< V<T>,1,T>;; view1d(VV<string> ) -> view1d<VV<string>,3,char>;; view1d( V<string> ) -> view1d< V<string>,2,char>;; view1d( string ) -> view1d< string ,1,char>;template<class T,class S> view1d( VVV<T>,S,S,S) -> view1d< VVV<T>,3,T>;template<class T,class S> view1d( VV<T>,S,S,S) -> view1d< VV<T>,2,T>;template<class T,class S> view1d( V<T>,S,S,S) -> view1d< V<T>,1,T>;template<class S> view1d(VV<string>,S,S,S) -> view1d<VV<string>,3,char>;template<class S> view1d( V<string>,S,S,S) -> view1d< V<string>,2,char>;template<class S> view1d( string ,S,S,S) -> view1d< string ,1,char>;template<class VIEW2D> struct view2dIter{VIEW2D *vw=nullptr;ll idx=INF;view2dIter(){}view2dIter(VIEW2D *vw_,ll idx_):vw(vw_),idx(idx_){}view2dIter(const view2dIter &it):vw(it.vw),idx(it.idx){}auto &operator*() { return (*vw)[x(idx)][y(idx)]; }auto &operator*() const{ return (*vw)[x(idx)][y(idx)]; }auto &operator[](ll i) { return (*vw)[x(idx+i)][y(idx+i)]; }auto &operator[](ll i)const{ return (*vw)[x(idx+i)][y(idx+i)]; }auto &operator++(){ idx++; return *this; }auto &operator--(){ idx--; return *this; }auto operator++(int){ auto it=*this; idx++; return it; }auto operator--(int){ auto it=*this; idx--; return it; }auto &operator+=(ll n){ idx+=n; return *this; }auto &operator-=(ll n){ idx-=n; return *this; }auto operator+(ll n){ auto it=*this; return it+=n; }auto operator-(ll n){ auto it=*this; return it-=n; }ll operator- (const view2dIter &it)const{ return idx- it.idx; }bool operator< (const view2dIter &it)const{ return idx< it.idx; }bool operator> (const view2dIter &it)const{ return idx> it.idx; }bool operator<=(const view2dIter &it)const{ return idx<=it.idx; }bool operator>=(const view2dIter &it)const{ return idx>=it.idx; }bool operator!=(const view2dIter &it)const{ return idx!=it.idx; }bool operator==(const view2dIter &it)const{ return idx==it.idx; }ll x(ll i)const{ return i/vw->leny(); }ll y(ll i)const{ return i%vw->leny(); }using iterator_category = random_access_iterator_tag;using value_type = typename VIEW2D::value_type;using difference_type = ll;using pointer = value_type*;using reference = value_type&;};template<class T,size_t S,class R> struct view2d{using Sll=array<ll,S>;T &data; //参照先データSll dsize; //参照先データ各軸のサイズSll s=Sll(); //view始点Sll dx=Sll(); //view x軸方向Sll dy=Sll(); //view y軸方向ll xl; //view x軸長さll yl; //view y軸長さR dummy=R(); //範囲外の値/*---- コンストラクタ ----*/view2d(T &v): data(v){view1d<T,S,R>::SetDsize(v,dsize);dx[S-2]=1;dy[S-1]=1;xl=dsize[S-2];yl=dsize[S-1];}/*---- 演算 ----*///template<class Q> auto &operator =(const Q &b){ rep(i,0,xl-1) (*this)[i] =b; return *this; }//template<class Q,size_t P,class O> auto &operator+=(const view2d<Q,P,O> &b){// rep(i,0,xl-1) (*this)[i]// return PlSeq(b); }/*---- getter ----*/ll size() const { return xl; }array<ll,2> shape() const { return {xl,yl}; }ll lenx() const { return xl; }ll leny() const { return yl; }///pll shape() const { return {xl,yl}; }view1d<T,S,R> operator[](ll i){ return view1d(data,s+dx*i,dy,yl,dummy); }const view1d<T,S,R> operator[](ll i) const { return view1d(data,s+dx*i,dy,yl,dummy); }R &at(ll i,ll j){ if(i<0)i+=xl; if(j<0)j+=yl; return (*this)[i][j]; }//vector<vector<R>> tovv(){// vector<vector<R>> vvv(xl);// ///rep(i,0,xl-1) vvv[i]=(*this)[i].tov(); return vvv;// rep(i,0,xl-1) vvv[i]=(*this)[i]; return vvv;//}operator vector<vector<R>>(){vector<vector<R>> v(xl);rep(i,0,xl-1) v[i]=(*this)[i]; return v;}auto begin(){ return view2dIter(this,0); }auto end(){ return view2dIter(this,xl*yl); }#if defined(_DEBUG)void dump(){ ::dump(tovv()); }#endif/*---- view設定 ----*/view2d<T,S,R> &dmy(R dmy_) { dummy=dmy_; return *this; }//ダミー値セットtemplate<class...Q> view2d<T,S,R> &st(Q... s_){//始点set 負は末尾からの位置this->s=RevIfNeg(view1d<T,S,R>::SllD(s_...));this->xl=view1d<T,S,R>::AutoLen(this->s,this->dx,this->dsize);this->yl=view1d<T,S,R>::AutoLen(this->s,this->dy,this->dsize);return *this;}template<class...Q> view2d<T,S,R> &dirx(Q... d_){//x軸set、長さはdata端までthis->dx=view1d<T,S,R>::SllD(d_...);this->xl=view1d<T,S,R>::AutoLen(this->s,this->dx,this->dsize);return *this;}template<class...Q> view2d<T,S,R> &diry(Q... d_){//y軸set、長さはdata端までthis->dy=view1d<T,S,R>::SllD(d_...);this->yl=view1d<T,S,R>::AutoLen(this->s,this->dy,this->dsize);return *this;}template<class...Q> view2d<T,S,R> &mv(Q... s_){//平行移動this->s += view1d<T,S,R>::SllD(s_...);return *this;}view2d<T,S,R> &lenx(ll xl_) { xl=xl_; return *this; }view2d<T,S,R> &leny(ll yl_) { yl=yl_; return *this; }view2d<T,S,R> &shape(ll xl_,ll yl_) { xl=xl_; yl=yl_; return *this; }template<class Q> view2d<T,S,R> &shape(Q &v) { xl=v.lenx(); yl=v.leny(); return *this; }view2d<T,S,R> &rot90 () { s+=dx*(xl-1); swap(xl,yl); swap(dx,dy); dy*=-1; return *this; }view2d<T,S,R> &rot270() { s+=dy*(yl-1); swap(xl,yl); swap(dx,dy); dx*=-1; return *this; }view2d<T,S,R> &rot180() { s+=dx*(xl-1)+dy*(yl-1); dx*=-1; dy*=-1; return *this; }view2d<T,S,R> &revx() { s+=dx*(xl-1); dx*=-1; return *this; }view2d<T,S,R> &revy() { s+=dy*(yl-1); dy*=-1; return *this; }view2d<T,S,R> &swapxy() { swap(xl,yl); swap(dx,dy); return *this; }//xy軸入替/*---- utility ----*/Sll RevIfNeg(Sll pos){//!< 負なら末尾からの位置に変換rep(i,0,S-1) if (pos[i]<0) pos[i]+=dsize[i];return pos;}using value_type = R;};template<class T> view2d( VVV<T>) -> view2d< VVV<T>,3,T>;template<class T> view2d( VV<T>) -> view2d< VV<T>,2,T>;; view2d(VV<string>) -> view2d<VV<string>,3,char>;; view2d( V<string>) -> view2d< V<string>,2,char>;/*zipは参照のpairを返す。それをさらに参照するのはまずいので、コピーする。*/template<class ZIP> struct zipIter{ZIP *z=nullptr;ll idx=INF;zipIter(){}zipIter(ZIP *z_,ll idx_):z(z_),idx(idx_){}zipIter(const zipIter<ZIP> &it):z(it.z),idx(it.idx){}auto operator*() { return (*z)[idx]; }//参照ではなく値戻しauto operator*() const{ return (*z)[idx]; }//同上auto operator[](ll i) { return (*z)[idx+i]; }//同上auto operator[](ll i)const{ return (*z)[idx+i]; }//同上auto &operator++(){ idx++; return *this; }auto &operator--(){ idx--; return *this; }auto operator++(int){ auto it=*this; idx++; return it; }auto operator--(int){ auto it=*this; idx--; return it; }auto &operator+=(ll n){ idx+=n; return *this; }auto &operator-=(ll n){ idx-=n; return *this; }auto operator+(ll n){ auto it=*this; return it+=n; }auto operator-(ll n){ auto it=*this; return it-=n; }ll operator- (const zipIter<ZIP> &it)const{ return idx- it.idx; }bool operator< (const zipIter<ZIP> &it)const{ return idx< it.idx; }bool operator> (const zipIter<ZIP> &it)const{ return idx> it.idx; }bool operator<=(const zipIter<ZIP> &it)const{ return idx<=it.idx; }bool operator>=(const zipIter<ZIP> &it)const{ return idx>=it.idx; }bool operator!=(const zipIter<ZIP> &it)const{ return idx!=it.idx; }bool operator==(const zipIter<ZIP> &it)const{ return idx==it.idx; }using iterator_category = random_access_iterator_tag;using value_type = typename ZIP::value_type;using difference_type = ll;using pointer = value_type*;using reference = value_type&;};template<class T,class S> struct zip2{T &t; S &s;zip2(T &t_,S &s_):t(t_),s(s_){}ll size() const { return t.end()-t.begin(); }auto operator[](ll i) { return make_pair(ref(t.begin()[i]),ref(s.begin()[i])); }auto operator[](ll i)const{ return make_pair(ref(t.begin()[i]),ref(s.begin()[i])); }auto begin(){ return zipIter(this,0); }auto end(){ return zipIter(this,size()); }using value_type = pair<typename T::value_type,typename S::value_type>;};template<class T,class S,class R> struct zip3{T &t; S &s; R &r;zip3(T &t_,S &s_,R &r_):t(t_),s(s_),r(r_){}ll size() const { return t.end()-t.begin(); }auto operator[](ll i) { return make_tuple(ref(t.begin()[i]),ref(s.begin()[i]),ref(r.begin()[i])); }auto operator[](ll i)const{ return make_tuple(ref(t.begin()[i]),ref(s.begin()[i]),ref(r.begin()[i])); }auto begin(){ return zipIter(this,0); }auto end(){ return zipIter(this,size()); }using value_type = tuple<typename T::value_type,typename S::value_type,typename R::value_type>;};#endif//テンプレートend#if defined(_MSC_VER) && __has_include(<atcoder/all>)#include <atcoder/all>using namespace atcoder;#endifstruct{system_clock::time_point st = system_clock::now();ll operator()()const{return duration_cast<microseconds>(system_clock::now()-st).count()/1000;}} timeget;template<ll MOD> struct mll_{ll val;mll_(ll v = 0): val(v % MOD){ if (val < 0) val += MOD; }bool isnone() const { return val==-1; } //true:値なしmll_ &none() { val=-1; return *this; } //値なしにするmll_ operator - () const { return -val; }mll_ operator + (const mll_ &b) const { return val + b.val; }mll_ operator - (const mll_ &b) const { return val - b.val; }mll_ operator * (const mll_ &b) const { return val * b.val; }mll_ operator / (const mll_ &b) const { return mll_(*this) /= b; }mll_ operator + (ll b) const { return *this + mll_(b); }mll_ operator - (ll b) const { return *this - mll_(b); }mll_ operator * (ll b) const { return *this * mll_(b); }friend mll_ operator + (ll a,const mll_ &b) { return b + a; }friend mll_ operator - (ll a,const mll_ &b) { return -b + a; }friend mll_ operator * (ll a,const mll_ &b) { return b * a; }friend mll_ operator / (ll a,const mll_ &b) { return mll_(a)/b; }mll_ &operator += (const mll_ &b) { val=(val+b.val)%MOD; return *this; }mll_ &operator -= (const mll_ &b) { val=(val+MOD-b.val)%MOD; return *this; }mll_ &operator *= (const mll_ &b) { val=(val*b.val)%MOD; return *this; }mll_ &operator /= (const mll_ &b) {ll c=b.val,d=MOD,u=1,v=0;while (d){ll t = c / d;c -= t * d; swap(c,d);u -= t * v; swap(u,v);}val = val * u % MOD;if (val < 0) val += MOD;return *this;}mll_ &operator += (ll b) { return *this += mll_(b); }mll_ &operator -= (ll b) { return *this -= mll_(b); }mll_ &operator *= (ll b) { return *this *= mll_(b); }mll_ &operator /= (ll b) { return *this /= mll_(b); }bool operator == (const mll_ &b) const { return val == b.val; }bool operator != (const mll_ &b) const { return val != b.val; }bool operator == (ll b) const { return *this == mll_(b); }bool operator != (ll b) const { return *this != mll_(b); }friend bool operator == (ll a,const mll_ &b) { return mll_(a) == b.val; }friend bool operator != (ll a,const mll_ &b) { return mll_(a) != b.val; }friend ostream &operator << (ostream &os,const mll_ &a) { return os << a.val; }friend istream &operator >> (istream &is,mll_ &a) { return is >> a.val; }static mll_ Combination(ll a,ll b){chmin(b,a-b);if (b<0) return mll_(0);mll_ c = 1, d = 1;rep(i,0,b-1) c *= a-i;rep(i,0,b-1) d *= i+1;return c/d;}enum{modll=MOD};};#if 0#define MODLL (1000000007LL)#else#define MODLL (998244353LL)#endifusing mll = mll_<MODLL>;using vmll = std::vector<mll>;using vvmll = std::vector<vmll>;using vvvmll = std::vector<vvmll>;using vvvvmll = std::vector<vvvmll>;//////////////////////////////////////////template<class T> struct fps_: vector<T>{using vT=vector<T>;#define d (*this)#define s ((ll)vT::size())template<class...Args> fps_(Args...args): vT(args...){}fps_(initializer_list<T> a): vT(a.begin(),a.end()){}T &operator[](ll i) { Resize(i+1); return vT::operator[](i); }T operator[](ll i) const { return i<s ? vT::operator[](i) : 0; }template<class S> T operator()(S x) const {T r=T();for (ll i=s-1; i>=0; --i) r=r*x+d[i];return r;}fps_& operator+=(const fps_ &b) { for (ll i=b.size()-1;i>=0;--i) d[i]+=b[i]; return Fit(); }fps_& operator-=(const fps_ &b) { for (ll i=b.size()-1;i>=0;--i) d[i]-=b[i]; return Fit(); }fps_& operator*=(const fps_ &b) {ll bs=(ll)b.size();fps_ ans(s+bs-1);for (ll i=0;i<s+bs-1;++i){ll st=min(i,s-1),en=max(0ll,i-bs+1);for (ll k=st;k>=en;--k){ans[i]+=d[k]*b[i-k];}}this->swap(ans);return Fit();}fps_& operator/=(const fps_ &b) { d=Div(b); return d; }fps_& operator%=(const fps_ &b) { Div(b); return d; }//llでは整数になる時のみ正常動作fps_& operator*=(const T &b) { for (auto&& e: d) e*=b; return Fit(); }fps_& operator/=(const T &b) { for (auto&& e: d) e/=b; return Fit(); }fps_ operator+(const fps_ &b) const { return fps_(d)+=b; }fps_ operator-(const fps_ &b) const { return fps_(d)-=b; }fps_ operator*(const fps_ &b) const { return fps_(d)*=b; }fps_ operator/(const fps_ &b) const { return fps_(d)/=b; }fps_ operator%(const fps_ &b) const { return fps_(d)%=b; }fps_ operator*(const T &b) const { return fps_(d)*=b; }fps_ operator/(const T &b) const { return fps_(d)/=b; }friend fps_ operator*(const T &a,const fps_ &b) { return b*a; }fps_ integ() const {//n変数(n≧3)に未対応、n-1変数であることを明示するようT{i+1,}を変更必要fps_ ret(VSize()+1);for (ll i=0;i<VSize();++i) ret[i+1]=d[i]/T{i+1,};return ret;}template<class S> T integ(S l,S r) const { fps_ itg=integ(); return itg(r)-itg(l); }//---- privatefps_ Div(const fps_ &b){//商:戻り値、余り:dll vs=VSize(),bs=b.VSize();fps_ ret; //商for (ll i=vs-1;i>=bs-1;--i){T &q = ret[i-bs+1] = d[i]/b[bs-1];for (ll j=0;j<bs-1;++j) d[i-bs+1+j] -= b[j]*q;}d.resize(bs-1);Fit();return ret.Fit();}template<class S> bool IsZero(const S &v) const { return v==S(); }template<class S> bool IsZero(const fps_<S> &v) const {return all_of(v.begin(),v.end(),[&](auto &x){return IsZero(x);});}ll VSize() const {//0を除いた最高次数ll vs=s;while (vs>0 && IsZero(d[vs-1])) --vs;return vs;}fps_& Fit(){ vT::resize(VSize()); return d; }//最高次の係数≠0になるよう縮めるvoid Resize(ll n) { if ((int)vT::size()<n) vT::resize(n); }vmll Conv_mll(const vmll &a,const vmll &b){vll aa,bb;aa.reserve(a.size()),bb.reserve(b.size());for (auto&& e: a) aa.push_back(e.val);for (auto&& e: b) bb.push_back(e.val);vll cc=convolution<mll::modll>(move(aa),move(bb));return vmll(cc.begin(),cc.end());}};template<> fps_<mll>& fps_<mll>::operator*=(const fps_<mll> &b) { d=this->Conv_mll(d,b); return Fit(); }template<> fps_< ll>& fps_< ll>::operator*=(const fps_< ll> &b) { d=convolution_ll(d,b); return Fit(); }template<class T> fps_<T> fpsprod(vector<fps_<T>*> &fs){//総積 ポインタ配列用ll n=(ll)fs.size();if (n==0) return fps_<T>{1,};if (n==1) return *(fs[0]);//途中計算の実体保管用プール 再確保防止用にreservevector<fps_<T>> pool;pool.reserve(n);//priority_queue準備 次数小さいもの優先auto comp=[](const fps_<T> *a,const fps_<T> *b){return a->size() > b->size();};priority_queue<fps_<T>*,vector<fps_<T>*>,decltype(comp)> pq(comp);for (auto&& f: fs) pq.push(f);//次数小さい順に2つの積を取る、を繰り返すwhile (pq.size()>1){fps_<T> *fa=pq.top(); pq.pop();fps_<T> *fb=pq.top(); pq.pop();pool.push_back((*fa)*(*fb));pq.push(&pool.back());}return *(pq.top());}template<class T> fps_<T> fpsprod(vector<fps_<T>> &fs){//総積 実体配列用vector<fps_<T>*> ps;for (auto&& f: fs) ps.push_back(&f);return fpsprod(ps);}#undef d#undef susing fps=fps_<ll>;/*- 定義、係数セットfps f={2,3,4,}; //f(x)=2+3x+4x^2f[1]=9; //f(x)=2+9x+4x^2 になるf[4]=7; //f(x)=2+9x+4x^2 +7x^4 になる(範囲外アクセス可能)- fps同士の演算 += -= *= /= %= + - * / % 形式的冪級数ではなく多項式の割り算- 定数倍 *= /= * /↓型指定要f*=mll(2);- 総積 ↓fpsのvector、またはfps*のvectorfps f=fpsprod(v);- 代入 ↓f(x)にx=3を代入mll val=f(3);- 不定積分 g=∫f dxfps g=f.integ();- 定積分 x=∫_1^3 f dxfps x=f.integ(1,3);*/void cin2solve(){ll n,m;cin >> n >> m;auto makef=[&](ll j){fps f={1,};rep(i,0,j-1){f*=fps({-i,1});}return f;};auto makefact=[&](ll n){vll ret;ret.push_back(1);rep(i,1,n){ret.push_back(ret.back()*i);}return ret;};vll facts=makefact(n);vll a(n+1);a[n]=facts[n];fps fcm=makef(n);dep(j,n-1,0){fps f=makef(j);a[j]=-fcm[j]*facts[j];fcm+=f*-fcm[j];}ll ans=(m<sz(a)) ? a[m] : 0;cout << ans << '\n';return;}//////////////////////////////////////////int main(){#if 1cin2solve();//generand();#elsell t; cin >> t;rep(i,0,t-1){cin2solve();//generand();}#endifcerr << timeget() <<"ms"<< '\n';return 0;}