using Lib; using Lib.GraphLib; using System; using System.Collections.Generic; using System.Diagnostics; using System.IO; using System.Linq; using System.Runtime.CompilerServices; using System.Text; using static Lib.OutputLib; public class Solver { const bool MultiTestCase = false; void Solve() { int n = ri; var seg = new Seg(n); for (int i = 0; i < n - 1; i++) seg.AddEdge(ri - 1, ri - 1); seg.Build(); var a = new int[n]; int q = ri; while (q-- > 0) { if (ri == 1) { int x = ri - 1; seg.Set(x, a[x] ^= 1); } else { int x = ri - 1; int l = -1, r = n; while (r - l > 1) { int m = (l + r) / 2; if (seg.Prod(x, m + 1) == 0) l = m; else r = m; } Write(r); } } } /// /// 木および可換モノイドについて次のクエリを O(n(logn)^2) で処理. /// - 一点更新 : ある頂点に書かれた値を変更. /// - 範囲取得 : ある頂点から距離 l 以上 r 未満の頂点についての総和. /// /// public class Seg { public readonly int Size; SegTree[] seg; (int i, int j)[][] seg_idx; int[][] depth_idx; int[] left, right, parent, root; UnweightedGraph g; LowestCommonAncestor lca; int[] csr, csr_start, depth; int[] data; public Seg(int n) { Size = n; g = new UnweightedGraph(n); data = new int[n]; Array.Fill(data, 0); } public void AddEdge(int u, int v) => g.AddEdge(u, v); public void Build() { (csr, csr_start) = g.ToCSR(); var cd = new CentroidDecomposition(g); var rev_ord = cd.GetReversedOrderSpan(); var in_time = cd.GetInTimeSpan(); var cd_children = new List[Size]; for (int i = 0; i < Size; i++) cd_children[i] = new List(); var cd_parent = cd.GetParentSpan(); for (int i = 0; i < Size; i++) if (cd_parent[i] != -1) cd_children[cd_parent[i]].Add(i); int dummy_count = 0; for (int x = 0; x < Size; x++) { int cnt = 0; var es = csr.AsSpan(csr_start[x], csr_start[x + 1] - csr_start[x]); foreach (var y in es) if (in_time[x] < in_time[y]) cnt++; dummy_count += Math.Max(0, cnt - 1); } int size_all = Size + dummy_count; var weight = new int[size_all]; seg = new SegTree[Size + size_all]; var seg_idx_list = new List<(int i, int j)>[Size]; for (int i = 0; i < seg_idx_list.Length; i++) seg_idx_list[i] = new List<(int, int)>(); depth_idx = new int[Size + size_all][]; left = new int[size_all]; Array.Fill(left, -1); right = new int[size_all]; Array.Fill(right, -1); parent = new int[size_all]; Array.Fill(parent, -1); root = new int[size_all]; var qu = new Queue<(int x, int p)>(); var pq = new PriorityQueue(); int dummy_idx = Size; var dist = new int[Size]; var vs_buf = new (int x, int d)[size_all][]; lca = new LowestCommonAncestor(g, rev_ord[^1]); depth = new int[Size]; qu.Enqueue((rev_ord[^1], -1)); while (qu.Count > 0) { var (x, p) = qu.Dequeue(); var es = csr.AsSpan(csr_start[x], csr_start[x + 1] - csr_start[x]); foreach (var y in es) if (y != p) { depth[y] = depth[x] + 1; qu.Enqueue((y, x)); } } foreach (var r in rev_ord) { var vs_list = new List<(int x, int d)>(); dist[r] = 0; qu.Enqueue((r, -1)); while (qu.Count > 0) { var (x, p) = qu.Dequeue(); vs_list.Add((x, dist[x])); var es = csr.AsSpan(csr_start[x], csr_start[x + 1] - csr_start[x]); foreach (var y in es) { if (in_time[r] > in_time[y] || y == p) continue; dist[y] = dist[x] + 1; qu.Enqueue((y, x)); } } { weight[r] = vs_list.Count; depth_idx[r] = new int[vs_list[^1].d + 2]; var data = new int[vs_list.Count]; for (int i = 0, j = 0; i < vs_list.Count; i++) { var (x, d) = vs_list[i]; data[i] = this.data[x]; while (j <= d) depth_idx[r][j++] = i; seg_idx_list[x].Add((r, i)); } depth_idx[r][^1] = vs_list.Count; seg[r] = new SegTree(data); } var real_children = csr.AsSpan(csr_start[r], csr_start[r + 1] - csr_start[r]); foreach (var s in real_children) { if (in_time[s] < in_time[r]) continue; vs_list = new List<(int x, int d)>(); qu.Enqueue((s, r)); dist[s] = 1; int cd_child = -1; while (qu.Count > 0) { var (x, p) = qu.Dequeue(); vs_list.Add((x, dist[x])); if (cd_parent[x] == r) cd_child = x; var es = csr.AsSpan(csr_start[x], csr_start[x + 1] - csr_start[x]); foreach (var y in es) { if (in_time[r] > in_time[y] || y == p) continue; dist[y] = dist[x] + 1; qu.Enqueue((y, x)); } } var vs = vs_list.ToArray(); int idx = Size + cd_child; depth_idx[idx] = new int[vs[^1].d + 2]; var data = new int[vs.Length]; for (int i = 0, j = 0; i < vs.Length; i++) { var (x, d) = vs[i]; data[i] = this.data[x]; while (j <= d) depth_idx[idx][j++] = i; seg_idx_list[x].Add((idx, i)); } depth_idx[idx][^1] = vs.Length; seg[idx] = new SegTree(data); root[cd_child] = r; vs_buf[cd_child] = vs; pq.Enqueue(cd_child, weight[cd_child]); } if (pq.Count > 0) { while (pq.Count >= 2) { int u = pq.Dequeue(); int v = pq.Dequeue(); weight[dummy_idx] = weight[u] + weight[v]; left[parent[u] = dummy_idx] = u; right[parent[v] = dummy_idx] = v; pq.Enqueue(dummy_idx, weight[dummy_idx]); var vs = new (int x, int d)[vs_buf[u].Length + vs_buf[v].Length]; { int i = 0, j = 0, k = 0; for (; i < vs_buf[u].Length && j < vs_buf[v].Length;) vs[k++] = vs_buf[u][i].d <= vs_buf[v][j].d ? vs_buf[u][i++] : vs_buf[v][j++]; vs_buf[u].AsSpan(i).CopyTo(vs.AsSpan(k)); k += vs_buf[u].Length - i; vs_buf[v].AsSpan(j).CopyTo(vs.AsSpan(k)); } root[dummy_idx] = r; int idx = Size + dummy_idx; depth_idx[idx] = new int[vs[^1].d + 2]; var data = new int[vs.Length]; for (int i = 0, j = 0; i < vs.Length; i++) { var (x, d) = vs[i]; data[i] = this.data[x]; while (j <= d) depth_idx[idx][j++] = i; seg_idx_list[x].Add((idx, i)); } depth_idx[idx][^1] = vs.Length; seg[idx] = new SegTree(data); vs_buf[dummy_idx++] = vs; } parent[left[r] = pq.Dequeue()] = r; } } seg_idx = new (int i, int j)[Size][]; for (int i = 0; i < seg_idx.Length; i++) seg_idx[i] = seg_idx_list[i].ToArray(); } public int Get(int x) => data[x]; [MethodImpl(256)] public void Set(int x, int v) { data[x] = v; foreach (var (i, j) in seg_idx[x]) seg[i].Set(j, v); } [MethodImpl(256)] public void Apply(int x, int v) { data[x] += v; foreach (var (i, j) in seg_idx[x]) seg[i].Apply(j, v); } [MethodImpl(256)] public int Prod(int x, int r) { int x0 = x; int ret = InnerProd(x, r); while (parent[x] != -1) { int y = left[parent[x]] != x ? left[parent[x]] : right[parent[x]]; if (y != -1) { int d = depth[x0] + depth[root[y]] - 2 * depth[lca.LCA(x0, root[y])]; ret += InnerProd(y + Size, r - d); } x = parent[x]; if (x != -1 && x < Size) { int d = depth[x0] + depth[x] - 2 * depth[lca.LCA(x0, x)]; if (d < r) ret += data[x]; } } return ret; } [MethodImpl(256)] private int InnerProd(int x, int r) { int d = depth_idx[x].Length - 1; if (r > d) r = d; return 0 < r ? seg[x].Prod(depth_idx[x][0], depth_idx[x][r]) : 0; } } #pragma warning disable CS0162, CS8618 public Solver() { if (!MultiTestCase) Solve(); else for (int t = ri; t > 0; t--) Solve(); } #pragma warning restore CS0162, CS8618 const int IINF = 1 << 30; const long INF = 1L << 60; int ri { [MethodImpl(256)] get => (int)sc.Integer(); } long rl { [MethodImpl(256)] get => sc.Integer(); } uint rui { [MethodImpl(256)] get => (uint)sc.UInteger(); } ulong rul { [MethodImpl(256)] get => sc.UInteger(); } double rd { [MethodImpl(256)] get => sc.Double(); } string rs { [MethodImpl(256)] get => sc.Scan(); } string rline { [MethodImpl(256)] get => sc.Line(); } public StreamScanner sc = new StreamScanner(Console.OpenStandardInput()); void ReadArray(out int[] a, int n) { a = new int[n]; for (int i = 0; i < a.Length; i++) a[i] = ri; } void ReadArray(out long[] a, int n) { a = new long[n]; for (int i = 0; i < a.Length; i++) a[i] = rl; } void ReadArray(out T[] a, int n, Func read) { a = new T[n]; for (int i = 0; i < a.Length; i++) a[i] = read(); } void ReadArray(out T[] a, int n, Func read) { a = new T[n]; for (int i = 0; i < a.Length; i++) a[i] = read(i); } } static class Program { static public void Main(string[] args) { SourceExpander.Expander.Expand(); Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false }); new Solver(); Console.Out.Flush(); } } #region Expanded by https://github.com/kzrnm/SourceExpander namespace Lib{public class SegTreewhere Op:struct,IMonoid{private static readonly Op op=default;public int Length{get;}protected readonly int log,size;public readonly T[]d;public SegTree(int sz){Length=sz;log=0;while((1<0;i--)Update(i);}[MethodImpl(256)]public void Clear()=>Array.Fill(d,op.Identity);[MethodImpl(256)]internal void SetWithoutUpdate(int p,T v)=>d[p+size]=v;[MethodImpl(256)]internal void AllUpdate(){for(int i=size-1;i>0;i--)Update(i);}[MethodImpl(256)]private void Update(int p)=>d[p]=op.Operate(d[2*p],d[2*p+1]);[MethodImpl(256)]public T Get(int p)=>d[p+size];[MethodImpl(256)]public void Set(int p,T v){p+=size;d[p]=v;for(int i=1;i<=log;i++)Update(p>>i);}[MethodImpl(256)]public void Apply(int p,T v){p+=size;d[p]=op.Operate(d[p],v);for(int i=1;i<=log;i++)Update(p>>i);}public T AllProd()=>d[1];[MethodImpl(256)]public T Prod(int l,int r){T sl=op.Identity,sr=op.Identity;l+=size;r+=size;while(l>=1;r>>=1;}return op.Operate(sl,sr);}[MethodImpl(256)]public int MaxRight(int l,Predicatef){if(l==Length)return Length;l+=size;var s=op.Identity;do{while(l%2==0)l>>=1;if(!f(op.Operate(s,d[l]))){while(lf){if(r==0)return 0;r+=size;var s=op.Identity;do{r--;while(r>1&&(r%2)!=0)r>>=1;if(!f(op.Operate(d[r],s))){while(rindex;}public void Push(int value)=>data[index++]=value;public int Peek()=>data[index-1];public int Pop()=>data[ --index];public void Clear()=>index=0;}public class SimpleIntPairStack{(int,int)[]data;int index;public SimpleIntPairStack(int size_max){data=new(int,int)[size_max];index=0;}public int Count{get=>index;}public void Push((int,int)value)=>data[index++]=value;public void Push(int item1,int item2)=>data[index++]=(item1,item2);public(int,int)Peek()=>data[index-1];public(int,int)Pop()=>data[ --index];public void Clear()=>index=0;} public class SparseTable{public int Length{get;}readonly T[][]st;Funcop;public SparseTable(ReadOnlySpanarr,Func_op){Length=arr.Length;op=_op;int log=1;while((Length>>log)>0)log++;st=new T[log][];st[0]=arr.ToArray();for(int k=1;k{public struct Edge{public int from,to;public T data;public Edge(int _from,int _to,T _data){from=_from;to=_to;data=_data;}public Edge(int _to,T _data){from=-1;to=_to;data=_data;}}int n;public int Size=>n;public List[]edges;public Graph(Graph_g){n=_g.Size;edges=new List[n];for(int i=0;i(_g.edges[i]);}public Graph(List[]_g,Func_e){n=_g.Length;edges=new List[n];for(int i=0;i();for(int i=0;i_e){n=_g.Length;edges=new List[n];for(int i=0;i();for(int i=0;i[n];for(int i=0;i();}public void AddEdge(int x,int y,T data){edges[x].Add(new Edge(x,y,data));edges[y].Add(new Edge(y,x,data));}public void AddDirectedEdge(int src,int to,T data){edges[src].Add(new Edge(src,to,data));}public Edge[][]ToArray(bool sort=true){if(sort)for(int i=0;ie.to.CompareTo(f.to));var g=new Edge[n][];for(int i=0;ie.to.CompareTo(f.to));var g=new int[n][];for(int i=0;ie.to).ToArray();return g;}public(Edge[]csr,int[]start)ToCSR(bool sort=true){if(sort)for(int i=0;ie.to.CompareTo(f.to));var start=new int[n+1];for(int i=0;ie.to.CompareTo(f.to));var start=new int[n+1];for(int i=0;igraph.AddEdge(x,y);public int GetParent(int x)=>par[x];public ReadOnlySpanGetParentSpan()=>par;public int GetOrder(int x)=>ord[x];public ReadOnlySpanGetOrderSpan()=>ord;public int GetReversedOrder(int x)=>ord_rev[x];public ReadOnlySpanGetReversedOrderSpan()=>ord_rev;public int GetInTime(int x)=>in_time[x];public ReadOnlySpanGetInTimeSpan()=>in_time;SimpleIntPairStack st;public void Build(){used=new bool[n];sz=new int[n];par=new int[n];Array.Fill(par,-1);ord=new int[n];in_time=new int[n];st=new SimpleIntPairStack(n);(csr,csr_start)=graph.ToCSR();DFS(0,-1);ord_rev=ord.Reverse().ToArray();}private void CalcSize(int x,int p){sz[x]=1;var es=csr.AsSpan(csr_start[x],csr_start[x+1]-csr_start[x]);foreach(var y in es){if(!used[y]&&y!=p){CalcSize(y,x);sz[x]+=sz[y];}}}private void DFS(int x,int p0){st.Push((x,-1));while(st.Count>0){var(x1,p1)=st.Pop();if(x1<0){if(p1!=-1)sz[p1]+=sz[~x1];}else{st.Push((~x1,p1));sz[x1]=1;var es=csr.AsSpan(csr_start[x1],csr_start[x1+1]-csr_start[x1]);foreach(var y in es)if(!used[y]&&y!=p1)st.Push((y,x1));}}int tot=sz[x];bool ok=false;int p=-1;while(!ok){ok=true;var es=csr.AsSpan(csr_start[x],csr_start[x+1]-csr_start[x]);foreach(var y in es){if(!used[y]&&y!=p&&2*sz[y]>tot){p=x;x=y;ok=false;break;}}}par[x]=p0;ord[time]=x;in_time[x]=time++;used[x]=true;{var es=csr.AsSpan(csr_start[x],csr_start[x+1]-csr_start[x]);foreach(var y in es)if(!used[y])DFS(y,x);}}}} namespace Lib.GraphLib{public class LowestCommonAncestor{public int Size{get;private set;}public readonly int Root;readonly UnweightedGraph graph;int[][]g;SparseTable<(int x,int d)>sparse_table;internal int[]in_time,depth,parent,euler_tour;private int time;public LowestCommonAncestor(int size,int root=0){Size=size;Root=root;graph=new UnweightedGraph(size);}public LowestCommonAncestor(in UnweightedGraph graph,int root=0){Size=graph.Size;Root=root;this.graph=graph;Build();}public void AddEdge(int u,int v)=>graph.AddEdge(u,v);public void Build(){g=graph.ToArray();parent=new int[Size];Array.Fill(parent,-1);depth=new int[Size];in_time=new int[Size];euler_tour=new int[2*Size-1];time=0;DFS(Root);var pair=new(int x,int d)[euler_tour.Length];for(int i=0;i(pair,(x,y)=>x.d<=y.d?x:y);}private void DFS(int x){in_time[x]=time;euler_tour[time++]=x;foreach(var y in g[x]){if(y==parent[x])continue;parent[y]=x;depth[y]=depth[x]+1;DFS(y);euler_tour[time++]=x;}}public int LCA(int u,int v){int x=in_time[u],y=in_time[v];if(x>y)(x,y)=(y,x);return sparse_table[x..(y+1)].x;}}} namespace Lib{public class UnweightedGraph:Graph{public UnweightedGraph(UnweightedGraph _g):base(_g){}public UnweightedGraph(List[]_g):base(_g,()=>1){}public UnweightedGraph(int _n):base(_n){}[MethodImpl(256)]public void AddEdge(int x,int y)=>AddEdge(x,y,1);[MethodImpl(256)]public void AddDirectedEdge(int src,int to)=>AddDirectedEdge(src,to,1);public new int[][]ToArray(bool sort=true)=>ToUnweightedArray(sort);public new(int[]csr,int[]csr_start)ToCSR(bool sort=true)=>ToUnweightedCSR(sort);}} namespace Lib{public interface IGroup:IMonoid,IInvertible{}public struct IntAddGroup:IMonoid,IGroup{public int Identity=>0;public int Operate(int x,int y)=>x+y;public int Inverse(int x)=>-x;}public struct LongAddGroup:IMonoid,IGroup{public long Identity=>0;public long Operate(long x,long y)=>x+y;public long Inverse(long x)=>-x;}public struct ModIntAddGroup:IMonoid>,IGroup>where T:struct,IStaticMod{public StaticModIntIdentity=>0;public StaticModIntOperate(StaticModIntx,StaticModInty)=>x+y;public StaticModIntInverse(StaticModIntx)=>-x;}public struct IntPairAddGroup:IMonoid<(int,int)>,IGroup<(int,int)>{public(int,int)Identity=>(0,0);public(int,int)Operate((int,int)x,(int,int)y)=>(x.Item1+y.Item1,x.Item2+y.Item2);public(int,int)Inverse((int,int)x)=>(-x.Item1,-x.Item2);}public struct LongPairAddGroup:IMonoid<(long,long)>,IGroup<(long,long)>{public(long,long)Identity=>(0,0);public(long,long)Operate((long,long)x,(long,long)y)=>(x.Item1+y.Item1,x.Item2+y.Item2);public(long,long)Inverse((long,long)x)=>(-x.Item1,-x.Item2);}} namespace Lib{public interface IMonoid:IOperation,IIdentity{}public struct IntMinMonoid:IMonoid{public int Identity=>int.MaxValue;public int Operate(int x,int y)=>Math.Min(x,y);}public struct IntMaxMonoid:IMonoid{public int Identity=>int.MinValue;public int Operate(int x,int y)=>Math.Max(x,y);}public struct LongMinMonoid:IMonoid{public long Identity=>long.MaxValue;public long Operate(long x,long y)=>Math.Min(x,y);}public struct LongMaxMonoid:IMonoid{public long Identity=>long.MinValue;public long Operate(long x,long y)=>Math.Max(x,y);}public struct PairMonoid:IMonoid<(T1,T2)>where Op1:struct,IMonoidwhere Op2:struct,IMonoid{public readonly static Op1 op1=default;public readonly static Op2 op2=default;public(T1,T2)Identity=>(op1.Identity,op2.Identity);public(T1,T2)Operate((T1,T2)x,(T1,T2)y)=>(op1.Operate(x.Item1,y.Item1),op2.Operate(x.Item2,y.Item2));}public struct Tuple2Monoid:IMonoid<(T,T)>where Op:struct,IMonoid{public readonly static Op op=default;public(T,T)Identity=>(op.Identity,op.Identity);public(T,T)Operate((T,T)x,(T,T)y)=>(op.Operate(x.Item1,y.Item1),op.Operate(x.Item2,y.Item2));}public struct Tuple3Monoid:IMonoid<(T,T,T)>where Op:struct,IMonoid{public readonly static Op op=default;public(T,T,T)Identity=>(op.Identity,op.Identity,op.Identity);public(T,T,T)Operate((T,T,T)x,(T,T,T)y)=>(op.Operate(x.Item1,y.Item1),op.Operate(x.Item2,y.Item2),op.Operate(x.Item3,y.Item3));}public struct Tuple4Monoid:IMonoid<(T,T,T,T)>where Op:struct,IMonoid{public readonly static Op op=default;public(T,T,T,T)Identity=>(op.Identity,op.Identity,op.Identity,op.Identity);public(T,T,T,T)Operate((T,T,T,T)x,(T,T,T,T)y)=>(op.Operate(x.Item1,y.Item1),op.Operate(x.Item2,y.Item2),op.Operate(x.Item3,y.Item3),op.Operate(x.Item4,y.Item4));}} namespace Lib{public interface IIdentity{T Identity{get;}}} namespace Lib{public interface IInvertible{T Inverse(T x);}} namespace Lib{public interface IOperation{T Operate(T x,T y);}} namespace Lib{public partial class StreamScanner{public StreamScanner(Stream stream){str=stream;}private readonly Stream str;private readonly byte[]buf=new byte[1024];private int len,ptr;public bool isEof=false;public bool IsEndOfStream{get{return isEof;}}[MethodImpl(256)]private byte Read(){if(isEof)throw new EndOfStreamException();if(ptr>=len){ptr=0;if((len=str.Read(buf,0,1024))<=0){isEof=true;return 0;}}return buf[ptr++];}[MethodImpl(256)]public char Char(){byte b;do b=Read();while(b<33||126=33&&b<=126;b=(char)Read())sb.Append(b);return sb.ToString();}[MethodImpl(256)]public long Integer(){long ret=0;var ng=false;byte b;do b=Read();while(b!='-'&&(b<'0'||'9'double.Parse(Scan());}} namespace Lib{public interface IStaticMod{uint Mod{get;}bool IsPrime{get;}}public readonly struct Mod1000000007:IStaticMod{public uint Mod=>1000000007;public bool IsPrime=>true;}public readonly struct Mod998244353:IStaticMod{public uint Mod=>998244353;public bool IsPrime=>true;}} namespace Lib{public readonly struct StaticModInt:IEquatable>where T:struct,IStaticMod{internal readonly uint _v;private static readonly T op=default;public int Value=>(int)_v;public static int Mod=>(int)op.Mod;public static StaticModIntZero=>default;public static StaticModIntOne=>new StaticModInt(1u);[MethodImpl(256)]public static StaticModIntRaw(int v){var u=unchecked((uint)v);return new StaticModInt(u);}[MethodImpl(256)]public StaticModInt(long v):this(Round(v)){}[MethodImpl(256)]public StaticModInt(ulong v):this((uint)(v%op.Mod)){}[MethodImpl(256)]private StaticModInt(uint v)=>_v=v;public static bool IsZero(StaticModIntx)=>x.Value==0;public static bool IsOne(StaticModIntx)=>x.Value==1;[MethodImpl(256)]private static uint Round(long v){var x=v%op.Mod;if(x<0)x+=op.Mod;return(uint)x;}[MethodImpl(256)]public static StaticModIntoperator ++(StaticModIntv){var x=v._v+1;if(x==op.Mod)x=0;return new StaticModInt(x);}[MethodImpl(256)]public static StaticModIntoperator --(StaticModIntv){var x=v._v;if(x==0)x=op.Mod;return new StaticModInt(x-1);}[MethodImpl(256)]public static StaticModIntoperator+(StaticModIntlhs,StaticModIntrhs){var v=lhs._v+rhs._v;if(v>=op.Mod)v-=op.Mod;return new StaticModInt(v);}[MethodImpl(256)]public static StaticModIntoperator-(StaticModIntlhs,StaticModIntrhs){unchecked{var v=lhs._v-rhs._v;if(v>=op.Mod)v+=op.Mod;return new StaticModInt(v);}}[MethodImpl(256)]public static StaticModIntoperator*(StaticModIntlhs,StaticModIntrhs)=>new StaticModInt((uint)((ulong)lhs._v*rhs._v%op.Mod));[MethodImpl(256)]public static StaticModIntoperator/(StaticModIntlhs,StaticModIntrhs)=>new StaticModInt((uint)((ulong)lhs._v*Inv(rhs._v)%op.Mod));[MethodImpl(256)]public static StaticModIntoperator+(StaticModIntv)=>v;[MethodImpl(256)]public static StaticModIntoperator-(StaticModIntv)=>new StaticModInt(v._v==0?0:op.Mod-v._v);[MethodImpl(256)]public static bool operator==(StaticModIntlhs,StaticModIntrhs)=>lhs._v==rhs._v;[MethodImpl(256)]public static bool operator!=(StaticModIntlhs,StaticModIntrhs)=>lhs._v!=rhs._v;[MethodImpl(256)]public static implicit operator StaticModInt(int v)=>new StaticModInt(v);[MethodImpl(256)]public static implicit operator StaticModInt(uint v)=>new StaticModInt((long)v);[MethodImpl(256)]public static implicit operator StaticModInt(long v)=>new StaticModInt(v);[MethodImpl(256)]public static implicit operator StaticModInt(ulong v)=>new StaticModInt(v);[MethodImpl(256)]public static implicit operator long(StaticModIntv)=>v._v;[MethodImpl(256)]public static implicit operator ulong(StaticModIntv)=>v._v;[MethodImpl(256)]public StaticModIntPow(long n){var x=this;var r=new StaticModInt(1U);if(n<0)(x,n)=(x.Inv(),-n);while(n>0){if((n&1)>0)r*=x;x*=x;n>>=1;}return r;}[MethodImpl(256)]public StaticModIntInv()=>new StaticModInt(Inv(_v));[MethodImpl(256)]static ulong Inv(ulong x){long u=op.Mod,xu=1,yu=0,v=(long)x,xv=0,yv=1;while(v!=0){long w=SafeMod(u,v);long q=(u-w)/v;long xw=xu-xv*q;long yw=yu-yv*q;u=v;xu=xv;yu=yv;v=w;xv=xw;yv=yw;}return(ulong)(yu<0?yu+op.Mod:yu);}[MethodImpl(256)]static long SafeMod(long x,long m){long r=x%m;if(r<0)r+=m;return r;}[MethodImpl(256)]public override string ToString()=>_v.ToString();[MethodImpl(256)]public string ToString(string format,IFormatProvider formatProvider)=>_v.ToString(format,formatProvider);[MethodImpl(256)]public override bool Equals(object?obj)=>obj is StaticModIntm&&Equals(m);[MethodImpl(256)]public bool Equals(StaticModIntother)=>_v==other._v;[MethodImpl(256)]public override int GetHashCode()=>_v.GetHashCode();}} namespace Lib{public static class OutputLib{[MethodImpl(256)]public static void WriteJoin(string s,IEnumerablet)=>Console.WriteLine(string.Join(s,t));[MethodImpl(256)]public static void WriteMat(T[,]a,string sep=" "){int sz1=a.GetLength(0),sz2=a.GetLength(1);var b=new T[sz2];for(int i=0;i(T[][]a,string sep=" "){foreach(var ar in a)WriteJoin(sep,ar);}[MethodImpl(256)]public static void WriteMat(T[][]a,Funcmap,string sep=" "){foreach(var ar in a)WriteJoin(sep,ar.Select(x=>map(x)));}[MethodImpl(256)]public static void Write(object t)=>Console.WriteLine(t.ToString());[MethodImpl(256)]public static void Write(params object[]arg)=>Console.WriteLine(string.Join(" ",arg.Select(x=>x.ToString())));[MethodImpl(256)]public static void Write(string str)=>Console.WriteLine(str);[MethodImpl(256)]public static void WriteFlush(object t){Console.WriteLine(t.ToString());Console.Out.Flush();}[MethodImpl(256)]public static void WriteError(object t)=>Console.Error.WriteLine(t.ToString());[MethodImpl(256)]public static void Flush()=>Console.Out.Flush();[MethodImpl(256)]public static void YN(bool t)=>Console.WriteLine(t?"YES":"NO");[MethodImpl(256)]public static void Yn(bool t)=>Console.WriteLine(t?"Yes":"No");[MethodImpl(256)]public static void yn(bool t)=>Console.WriteLine(t?"yes":"no");[MethodImpl(256)]public static void DeleteLine()=>Console.Write("\x1b[1A\x1b[2K");[MethodImpl(256)]public static void ProgressBar(long now,long total,int blocks=50){int x=(int)((2*now*blocks+1)/(2*total));Console.Write($"\x1b[G[\x1b[42m{string.Concat(Enumerable.Repeat("_",x))}\x1b[0m{string.Concat(Enumerable.Repeat("_",blocks-x))}] : {now} / {total}");}}} namespace SourceExpander{public class Expander{[Conditional("EXP")]public static void Expand(string inputFilePath=null,string outputFilePath=null,bool ignoreAnyError=true){}public static string ExpandString(string inputFilePath=null,bool ignoreAnyError=true){return "";}}} #endregion Expanded by https://github.com/kzrnm/SourceExpander