#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define X first #define Y second #define pb push_back #define rep(X,Y) for (int (X) = 0;(X) < (int)(Y);++(X)) #define reps(X,S,Y) for (int (X) = (int)(S);(X) < (int)(Y);++(X)) #define rrep(X,Y) for (int (X) = (int)(Y)-1;(X) >=0;--(X)) #define rreps(X,S,Y) for (int (X) = (int)(Y)-1;(X) >= (int)(S);--(X)) #define repe(X,Y) for ((X) = 0;(X) < (Y);++(X)) #define peat(X,Y) for (;(X) < (Y);++(X)) #define all(X) (X).begin(),(X).end() #define rall(X) (X).rbegin(),(X).rend() #define eb emplace_back #define UNIQUE(X) (X).erase(unique(all(X)),(X).end()) #define Endl endl #define NL <<"\n" #define cauto const auto using namespace std; using ll=long long; using pii=pair; using pll=pair; template using vv=vector>; template inline bool MX(T &l,const T &r){return l inline bool MN(T &l,const T &r){return l>r?l=r,1:0;} //#undef NUIP #ifdef NUIP #include "benri.h" #else #define out(args...) #endif void ouT(ll x,int d=3){auto re=to_string(x);if((int)re.size()>d) re=x>0?"oo":"-oo";cout<vector table(int n, T v){ return vector(n, v);} template auto table(int n, Args... args){auto val = table(args...); return vector(n, move(val));} #endif template pair operator+(const pair &p,const pair &q){ return {p.X+q.X,p.Y+q.Y};} template pair& operator+=(pair &p,const pair &q){ p.X+=q.X; p.Y+=q.Y; return p;} template pair operator-(const pair &p,const pair &q){ return {p.X-q.X,p.Y-q.Y};} template pair& operator-=(pair &p,const pair &q){ p.X-=q.X; p.Y-=q.Y; return p;} template istream& operator>>(istream &is, pair &p){ is>>p.X>>p.Y; return is;} template T read(){ T re; cin>>re; return move(re);} template T read(const T &dec){ T re; cin>>re; return re-dec;} template vector readV(const int sz){ vector re(sz); for(auto &x:re) x=read(); return move(re);} template vector readV(const int sz, const T &dec){ vector re(sz); for(auto &x:re) x=read(dec); return move(re);} vv readG(const int &n,const int &m){ vv g(n); rep(_,m){ cauto a=read(1),b=read(1); g[a].pb(b); g[b].pb(a);} return move(g);} vv readG(const int &n){ return readG(n,n-1);} #define TT cauto TTT=read();rep(_,TTT) const ll MOD=1e9+7; //998244353; struct Seg{ ll v; int c=0; Seg(ll d=0,int t=0):v(d),c(t){} static Seg e; }; Seg Seg::e=Seg(); Seg operator+(const Seg &l,const Seg &r){ return Seg(l.v+r.v,l.c+r.c); } template struct SegTreeUpdater{ SegTree *st; int i; SegTreeUpdater(SegTree *st,int i):st(st),i(i){} template void operator+=(const Seg &seg){ st->add(i,seg);} template void operator=(const Seg &seg){ st->assign(i,seg);} }; template struct SegTree{ vector segs; void add(int k,Seg a){ k+=segs.size()/2-1; segs[k]=segs[k]+a; upd(k); } void assign(int k,Seg a){ k+=segs.size()/2-1; segs[k]=a; upd(k); } void upd(int k){ while(k>0){ k=(k-1)/2; segs[k]=segs[k*2+1]+segs[k*2+2]; } } void upd(){ rrep(k,segs.size()/2-1) segs[k]=segs[k*2+1]+segs[k*2+2];} //(l,r,0,0,nn) template T query(int a,int b,int k,int l,int r){ if(r<=a || b<=l)return T::e; if(a<=l && r<=b) return segs[k]; T lv=query(a,b,k*2+1,l,(l+r)/2) ,rv= query(a,b,k*2+2,(l+r)/2,r); return lv+rv; } SegTree(int n){ int pw=1; while(pw> operator[](int i){ return {this,i};} Seg operator()(int l,int r){ return query(max(0,l),min((int)segs.size()/2,r),0,0,segs.size()/2);}; Seg& operator()(int i){ return segs[segs.size()/2-1+i];} Seg operator()(){ return segs[0];} Seg rb(int r){ return operator()(0,r); } Seg lb(int l){ return operator()(l,segs.size()/2); } }; // ��Ƶ� // https://lorent-kyopro.hatenablog.com/entry/2020/08/18/040229 int main(){ ios_base::sync_with_stdio(false); cin.tie(0); cout<(q,{1,0}); ll sum=accumulate(all(as),0ll); multiset mx(all(as)); SegTree st(n); for(cauto a:as){ cauto x=((n-2-a)%(n-1)+n-1)%(n-1); st[x]+=Seg(x,1); } for(cauto [i,x]:qs){ sum-=as[i]; mx.erase(mx.find(as[i])); { cauto x=((n-2-as[i])%(n-1)+n-1)%(n-1); st[x]+=Seg(-x,-1); } as[i]=x; sum+=as[i]; mx.emplace(as[i]); { cauto x=((n-2-as[i])%(n-1)+n-1)%(n-1); st[x]+=Seg(x,1); } if(*mx.rbegin()<=n-2){ cout<<0 NL; continue; } ll l=0,r=1e15; while(r-l>1){ cauto m=(l+r)/2; if(n-2+m-*mx.rbegin()<0){ l=m; continue;} cauto k=m%(n-1); auto t=sum; cauto segr=st(n-1-k,n-1); t-=segr.v-segr.c*(n-1ll-k); cauto segl=st(0,n-1-k); t-=segl.v+segl.c*k; (t/(n-1)>=m?r:l)=m; } cout<