結果
問題 | No.2362 Inversion Number of Mod of Linear |
ユーザー | maroon_kuri |
提出日時 | 2023-06-24 17:12:27 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,560 ms / 2,000 ms |
コード長 | 13,540 bytes |
コンパイル時間 | 4,051 ms |
コンパイル使用メモリ | 248,180 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-01 20:11:26 |
合計ジャッジ時間 | 9,678 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 990 ms
5,376 KB |
testcase_04 | AC | 268 ms
5,376 KB |
testcase_05 | AC | 56 ms
5,376 KB |
testcase_06 | AC | 1,560 ms
5,376 KB |
testcase_07 | AC | 625 ms
5,376 KB |
testcase_08 | AC | 840 ms
5,376 KB |
testcase_09 | AC | 851 ms
5,376 KB |
ソースコード
#ifndef LOCAL #pragma GCC optimize ("Ofast") #pragma GCC optimize ("unroll-loops") #endif #include <bits/stdc++.h> using namespace std; using ll=long long; #define int ll //デバッグ実行でオーバーフローするとコアダンプしがち using int128=__int128_t; using uint128=unsigned __int128_t; istream& operator>>(istream&is,int128&res){ res=0; string s;is>>s; int head=0; int128 w=1; if(s[0]=='-'){ w=-1; head++; } while(head<int(s.size())){ res=res*10+s[head++]-'0'; } res*=w; return is; } ostream& operator<<(ostream&os,int128 i){ if(i==0) return os<<0; static char buf[100]; if(i<0){ os<<"-"; i=-i; } int p=0; while(i){ buf[p++]='0'+i%10; i/=10; } reverse(buf,buf+p); buf[p]=0; return os<<buf; } ostream& operator<<(ostream&os,uint128 i){ if(i==0) return os<<0; static char buf[100]; int p=0; while(i){ buf[p++]='0'+i%10; i/=10; } reverse(buf,buf+p); buf[p]=0; return os<<buf; } int128 abs128(int128 a){ return a<0?-a:a; } int botbit(int128 a){ const int128 m=(int128(1)<<64)-1; if(a&m)return __builtin_ctzll(ll(a)); else return __builtin_ctzll(ll(a>>64))+64; } int128 gcd(int128 a,int128 b){ if(a<0)a=-a; if(b<0)b=-b; if(a==0)return b; if(b==0)return a; int128 s=botbit(a|b); a>>=botbit(a); do{ b>>=botbit(b); if(a>b)swap(a,b); b-=a; }while(b); return a<<s; } const int128 inf128=int128(1)<<122; #define rng(i,a,b) for(int i=int(a);i<int(b);i++) #define rep(i,b) rng(i,0,b) #define gnr(i,a,b) for(int i=int(b)-1;i>=int(a);i--) #define per(i,b) gnr(i,0,b) #define pb push_back #define eb emplace_back #define a first #define b second #define bg begin() #define ed end() #define all(x) x.bg,x.ed #define si(x) int(x.size()) #ifdef LOCAL #define dmp(x) cerr<<__LINE__<<" "<<#x<<" "<<x<<endl #else #define dmp(x) void(0) #endif template<class t,class u> bool chmax(t&a,u b){if(a<b){a=b;return true;}else return false;} template<class t,class u> bool chmin(t&a,u b){if(b<a){a=b;return true;}else return false;} template<class t> using vc=vector<t>; template<class t> using vvc=vc<vc<t>>; using pi=pair<int,int>; using vi=vc<int>; template<class t,class u> ostream& operator<<(ostream& os,const pair<t,u>& p){ return os<<"{"<<p.a<<","<<p.b<<"}"; } template<class t> ostream& operator<<(ostream& os,const vc<t>& v){ os<<"{"; for(auto e:v)os<<e<<","; return os<<"}"; } #define mp make_pair #define mt make_tuple #define one(x) memset(x,-1,sizeof(x)) #define zero(x) memset(x,0,sizeof(x)) #ifdef LOCAL void dmpr(ostream&os){os<<endl;} template<class T,class... Args> void dmpr(ostream&os,const T&t,const Args&... args){ os<<t<<" "; dmpr(os,args...); } #define dmp2(...) dmpr(cerr,__LINE__,##__VA_ARGS__) #else #define dmp2(...) void(0) #endif using uint=unsigned; using ull=unsigned long long; template<class t,size_t n> ostream& operator<<(ostream&os,const array<t,n>&a){ return os<<vc<t>(all(a)); } template<int i,class T> void print_tuple(ostream&,const T&){ } template<int i,class T,class H,class ...Args> void print_tuple(ostream&os,const T&t){ if(i)os<<","; os<<get<i>(t); print_tuple<i+1,T,Args...>(os,t); } template<class ...Args> ostream& operator<<(ostream&os,const tuple<Args...>&t){ os<<"{"; print_tuple<0,tuple<Args...>,Args...>(os,t); return os<<"}"; } ll read(){ ll i; cin>>i; return i; } vi readvi(int n,int off=0){ vi v(n); rep(i,n)v[i]=read()+off; return v; } pi readpi(int off=0){ int a,b;cin>>a>>b; return pi(a+off,b+off); } template<class t> void print_single(t x,int suc=1){ cout<<x; if(suc==1) cout<<"\n"; if(suc==2) cout<<" "; } template<class t,class u> void print_single(const pair<t,u>&p,int suc=1){ print_single(p.a,2); print_single(p.b,suc); } template<class T> void print_single(const vector<T>&v,int suc=1){ rep(i,v.size()) print_single(v[i],i==int(v.size())-1?suc:2); } template<class T> void print_offset(const vector<T>&v,ll off,int suc=1){ rep(i,v.size()) print_single(v[i]+off,i==int(v.size())-1?suc:2); } template<class T,size_t N> void print_single(const array<T,N>&v,int suc=1){ rep(i,N) print_single(v[i],i==int(N)-1?suc:2); } template<class T> void print(const T&t){ print_single(t); } template<class T,class ...Args> void print(const T&t,const Args&...args){ print_single(t,2); print(args...); } string readString(){ string s; cin>>s; return s; } template<class T> T sq(const T& t){ return t*t; } void YES(bool ex=true){ cout<<"YES\n"; if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } void NO(bool ex=true){ cout<<"NO\n"; if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } void Yes(bool ex=true){ cout<<"Yes\n"; if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } void No(bool ex=true){ cout<<"No\n"; if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } //#define CAPITAL /* void yes(bool ex=true){ #ifdef CAPITAL cout<<"YES"<<"\n"; #else cout<<"Yes"<<"\n"; #endif if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } void no(bool ex=true){ #ifdef CAPITAL cout<<"NO"<<"\n"; #else cout<<"No"<<"\n"; #endif if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif }*/ void possible(bool ex=true){ #ifdef CAPITAL cout<<"POSSIBLE"<<"\n"; #else cout<<"Possible"<<"\n"; #endif if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } void impossible(bool ex=true){ #ifdef CAPITAL cout<<"IMPOSSIBLE"<<"\n"; #else cout<<"Impossible"<<"\n"; #endif if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } constexpr ll ten(int n){ return n==0?1:ten(n-1)*10; } const ll infLL=LLONG_MAX/3; #ifdef int const int inf=infLL; #else const int inf=INT_MAX/2-100; #endif int topbit(signed t){ return t==0?-1:31-__builtin_clz(t); } int topbit(ll t){ return t==0?-1:63-__builtin_clzll(t); } int topbit(ull t){ return t==0?-1:63-__builtin_clzll(t); } int botbit(signed a){ return a==0?32:__builtin_ctz(a); } int botbit(ll a){ return a==0?64:__builtin_ctzll(a); } int botbit(ull a){ return a==0?64:__builtin_ctzll(a); } int popcount(signed t){ return __builtin_popcount(t); } int popcount(ll t){ return __builtin_popcountll(t); } int popcount(ull t){ return __builtin_popcountll(t); } int bitparity(ll t){ return __builtin_parityll(t); } bool ispow2(int i){ return i&&(i&-i)==i; } ll mask(int i){ return (ll(1)<<i)-1; } ull umask(int i){ return (ull(1)<<i)-1; } ll minp2(ll n){ if(n<=1)return 1; else return ll(1)<<(topbit(n-1)+1); } bool inc(int a,int b,int c){ return a<=b&&b<=c; } template<class t> void mkuni(vc<t>&v){ sort(all(v)); v.erase(unique(all(v)),v.ed); } ll rand_int(ll l, ll r) { //[l, r] //#ifdef LOCAL static mt19937_64 gen; /*#else static mt19937_64 gen(chrono::steady_clock::now().time_since_epoch().count()); #endif*/ return uniform_int_distribution<ll>(l, r)(gen); } ll rand_int(ll k){ //[0,k) return rand_int(0,k-1); } template<class t> void myshuffle(vc<t>&a){ rep(i,si(a))swap(a[i],a[rand_int(0,i)]); } template<class t> int lwb(const vc<t>&v,const t&a){ return lower_bound(all(v),a)-v.bg; } template<class t> bool bis(const vc<t>&v,const t&a){ return binary_search(all(v),a); } vvc<int> readGraph(int n,int m){ vvc<int> g(n); rep(i,m){ int a,b; cin>>a>>b; //sc.read(a,b); a--;b--; g[a].pb(b); g[b].pb(a); } return g; } vvc<int> readTree(int n){ return readGraph(n,n-1); } vc<ll> presum(const vi&a){ vc<ll> s(si(a)+1); rep(i,si(a))s[i+1]=s[i]+a[i]; return s; } //BIT で数列を管理するときに使う (CF850C) template<class t> vc<t> predif(vc<t> a){ gnr(i,1,si(a))a[i]-=a[i-1]; return a; } template<class t> vvc<ll> imos(const vvc<t>&a){ int n=si(a),m=si(a[0]); vvc<ll> b(n+1,vc<ll>(m+1)); rep(i,n)rep(j,m) b[i+1][j+1]=b[i+1][j]+b[i][j+1]-b[i][j]+a[i][j]; return b; } //verify してないや void transvvc(int&n,int&m){ swap(n,m); } template<class t,class... Args> void transvvc(int&n,int&m,vvc<t>&a,Args&...args){ assert(si(a)==n); vvc<t> b(m,vi(n)); rep(i,n){ assert(si(a[i])==m); rep(j,m)b[j][i]=a[i][j]; } a.swap(b); transvvc(n,m,args...); } //CF854E void rotvvc(int&n,int&m){ swap(n,m); } template<class t,class... Args> void rotvvc(int&n,int&m,vvc<t>&a,Args&...args){ assert(si(a)==n); vvc<t> b(m,vi(n)); rep(i,n){ assert(si(a[i])==m); rep(j,m)b[m-1-j][i]=a[i][j]; } a.swap(b); rotvvc(n,m,args...); } //ソートして i 番目が idx[i] //CF850C template<class t> vi sortidx(const vc<t>&a){ int n=si(a); vi idx(n);iota(all(idx),0); sort(all(idx),[&](int i,int j){return a[i]<a[j];}); return idx; } //vs[i]=a[idx[i]] //例えば sortidx で得た idx を使えば単にソート列になって返ってくる //CF850C template<class t> vc<t> a_idx(const vc<t>&a,const vi&idx){ int n=si(a); assert(si(idx)==n); vc<t> vs(n); rep(i,n)vs[i]=a[idx[i]]; return vs; } //CF850C vi invperm(const vi&p){ int n=si(p); vi q(n); rep(i,n)q[p[i]]=i; return q; } template<class t,class s=t> s SUM(const vc<t>&a){ return accumulate(all(a),s(0)); } template<class t> t MAX(const vc<t>&a){ return *max_element(all(a)); } template<class t> t MIN(const vc<t>&a){ return *min_element(all(a)); } template<class t> pair<t,int> MINi(const vc<t>&a){ auto itr=min_element(all(a)); return mp(*itr,itr-a.bg); } template<class t,class u> pair<t,u> operator+(const pair<t,u>&a,const pair<t,u>&b){ return mp(a.a+b.a,a.b+b.b); } vi vid(int n){ vi res(n);iota(all(res),0); return res; } template<class S> S getrev(S s){ reverse(all(s)); return s; } pi operator+(pi a,pi b){return pi(a.a+b.a,a.b+b.b);} template<class t> t gpp(vc<t>&vs){ assert(si(vs)); t res=move(vs.back()); vs.pop_back(); return res; } //Bytecamp 2022 Day2 L template<class num,int S> struct Vector:array<num,S>{ Vector operator-()const{ Vector v; rep(i,S)v[i]=-(*this)[i]; return v; } Vector& operator+=(const Vector&rhs){ rep(i,S)(*this)[i]+=rhs[i]; return *this; } Vector& operator-=(const Vector&rhs){ rep(i,S)(*this)[i]-=rhs[i]; return *this; } Vector operator+(const Vector&rhs)const{ return Vector(*this)+=rhs; } Vector operator-(const Vector&rhs)const{ return Vector(*this)-=rhs; } Vector& operator*=(const num&x){ rep(i,S)(*this)[i]*=x; return *this; } Vector& operator/=(const num&x){ num y=num(1)/x; rep(i,S)(*this)[i]*=y; return *this; } /*Vector& operator*=(const Vector&rhs){ rep(i,S)(*this)[i]*=rhs[i]; return *this; } Vector& operator/=(const Vector&rhs){ rep(i,S)(*this)[i]/=rhs[i]; return *this; } Vector operator*(const Vector&rhs)const{ return Vector(*this)*=rhs; } Vector operator/(const Vector&rhs)const{ return Vector(*this)/=rhs; }*/ Vector operator*(const num&x)const{ return Vector(*this)*=x; } Vector operator/(const num&x)const{ return Vector(*this)/=x; } }; template<class num,int S> num dot(const Vector<num,S>&a,const Vector<num,S>&b){ assert(a.size()==b.size()); const int s=a.size(); num ans(0); rep(i,s) ans+=a[i]*b[i]; return ans; } //CF CodeTon4 H template<class num,int S> struct Matrix:Vector<Vector<num,S>,S>{ using V=Vector<num,S>; Matrix operator*(const Matrix&rhs)const{ Matrix res{}; rep(i,S)rep(j,S)rep(k,S) res[i][j]+=(*this)[i][k]*rhs[k][j]; return res; } Matrix& operator*=(const Matrix&rhs){ return *this=(*this)*rhs; } V operator*(const V&rhs)const{ V res{}; rep(i,S) res[i]=dot((*this)[i],rhs); return res; } static Matrix getid(){ Matrix res{}; rep(i,S)res[i][i]=1; return res; } }; const int S=5; using V=Vector<int128,S>; using M=Matrix<int128,S>; M matpow(M a,int n){ M res=M::getid(); while(n){ if(n&1)res*=a; a*=a; n>>=1; } return res; } V matpow_V(M a,int n,V res){ while(n){ if(n&1)res=a*res; a*=a; n>>=1; } return res; } //f(x)=(hx+start)/w という直線を考える //(0,0) からスタートする. //まず (0,floor(f(0))) まで移動し,移動するたびに B をかける //その後以下の操作を N 回繰り返す //(x,y) から (x+1,y) へ移動.A をかける //(x,y) から (x,floor(f(x))) まで移動.移動するたびに B をかける //A|B をかけるというのは m->(A|B)m という遷移 //最終的な行列を返す //多分 O(log(w+h)) 回くらいの行列乗算だと思う //stress-tested M gauss_sum_matrix(int w,int h,int start,int n,M A,M B){ assert(0<w); assert(0<=h); assert(0<=start); assert(0<=n); M L=M::getid(),R=M::getid(); bool rev=false; while(1){ if(w<=start){ int k=start/w; if(!rev){ R=matpow(B,k)*R; }else{ L=L*matpow(A,k); } start%=w; } if(n==0)break; if(w<=h){ int k=h/w; if(!rev){ A=matpow(B,k)*A; }else{ B=B*matpow(A,k); } h%=w; }else{ int need=h?(w-start+h-1)/h:inf; if(n<need){ if(!rev){ R=matpow(A,n)*R; }else{ L=L*matpow(B,n); } n=0; }else{ if(!rev){ R=B*matpow(A,need)*R; }else{ L=L*matpow(B,need)*A; } start=(h*need+start)%w; n-=need; int p=(h*n+start)/w,q=(h*n+start)%w; swap(w,h); start=q; n=p; rev=!rev; } } } return L*R; } int128 sub(int n,int m,int x,int y,int w,int d){ M A{ 1,0,0,0,0, x,1,0,0,0, d,0,1,0,0, x*d,d,x,1,0, 0,0,0,1,1 }; M B{ 1 ,0,0 ,0,0, -m,1,0 ,0,0, 0 ,0,1 ,0,0, 0 ,0,-m,1,0, 0 ,0,0 ,0,1 }; V v{1,y,w,y*w,0}; M z=gauss_sum_matrix(m,x,y,n,A,B); return (z*v)[4]; } void slv(){ int n,m,x,y;cin>>n>>m>>x>>y; int128 ans=0; ans+=sub(n,m,x,0,n,-1); ans+=sub(n,m,x,y,(n-1),-2); assert(ans%m==0); print(ans/m); } signed main(){ cin.tie(0); ios::sync_with_stdio(0); cout<<fixed<<setprecision(20); int t;cin>>t;rep(_,t) slv(); }