#include //#include #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") using namespace std; #define int long long #define ALL(a) (a).begin(),(a.end()) #define brep(n,hhh) for(int i=n-1;i>=hhh;i--) #define rep(hhh,n) for(int i=hhh;i=n;i--) #define out(n) cout << n < #define vb vector #define vd vector #define vld vector #define vpd vector> #define vc vector #define vs vector #define vpi vector> #define vvc vector> #define vvi vector> #define vvd vector> #define vvpd vector>> #define vvb vector> #define vvvc vector>> #define vvvb vector>> #define vvvi vector>> #define vvvvi vector>>> #define vvvpi vector>> #define vvpi vector>> #define vvtpi vector>> #define dout(x,y) cout< #define PPi pair #define Pd pair #define Pdi pair #define TPi tuple #define QPi tuple #define FPi tuple #define TPd tuple #define spi pair #define pb push_back constexpr int MOD1=1000000007; constexpr int MOD2=998244353; constexpr int BIG=4000000000000000000;//10^18 template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } inline bool in(int i,int N){if(0<=i&&i<=N-1){return true;}return false;} class BIT { public: //データの長さ int n; //データの格納先 vector a; //コンストラクタ BIT(int n):n(n),a(n+1,0){} //a[i]にxを加算する void add(int i,int x){ i++; if(i==0) return; for(int k=i;k<=n;k+=(k & -k)){ a[k]+=x; //a[k]%=MOD2; } } void conf(){ for(int i=0;i<=n;i++){ cout<0;k-=(k & -k)){ s+=a[k]; //s%=MOD2; } return s; } //a[0]+a[1]+…+a[i]>=xとなる最小のiを求める(任意のkでa[k]>=0が必要) int lower_bound(int x){ if(x<=0){ //xが0以下の場合は該当するものなし→0を返す return 0; }else{ int i=0;int r=1; //最大としてありうる区間の長さを取得する //n以下の最小の二乗のべき(BITで管理する数列の区間で最大のもの)を求める while(r0;len=len>>1) { //その区間を採用する場合 if(i+len struct simple_queue { std::vector payload; int pos = 0; void reserve(int n) { payload.reserve(n); } int size() const { return (int)(payload.size()) - pos; } bool empty() const { return pos == (int)(payload.size()); } void push(const T& t) { payload.push_back(t); } T& front() { return payload[pos]; } void clear() { payload.clear(); pos = 0; } void pop() { pos++; } }; } template struct mf_graph { public: mf_graph() : _n(0) {} mf_graph(int n) : _n(n), g(n) {} int add_edge(int from, int to, Cap cap) { assert(0 <= from && from < _n); assert(0 <= to && to < _n); assert(0 <= cap); int m = (int)(pos.size()); pos.push_back({from, (int)(g[from].size())}); int from_id = (int)(g[from].size()); int to_id = (int)(g[to].size()); if (from == to) to_id++; g[from].push_back(_edge{to, to_id, cap}); g[to].push_back(_edge{from, from_id, 0}); return m; } struct edge { int from, to; Cap cap, flow; }; edge get_edge(int i) { int m = (int)(pos.size()); assert(0 <= i && i < m); auto _e = g[pos[i].first][pos[i].second]; auto _re = g[_e.to][_e.rev]; return edge{pos[i].first, _e.to, _e.cap + _re.cap, _re.cap}; } std::vector edges() { int m = (int)(pos.size()); std::vector result; for (int i = 0; i < m; i++) { result.push_back(get_edge(i)); } return result; } void change_edge(int i, Cap new_cap, Cap new_flow) { int m = (int)(pos.size()); assert(0 <= i && i < m); assert(0 <= new_flow && new_flow <= new_cap); auto& _e = g[pos[i].first][pos[i].second]; auto& _re = g[_e.to][_e.rev]; _e.cap = new_cap - new_flow; _re.cap = new_flow; } Cap flow(int s, int t) { return flow(s, t, std::numeric_limits::max()); } Cap flow(int s, int t, Cap flow_limit) { assert(0 <= s && s < _n); assert(0 <= t && t < _n); assert(s != t); std::vector level(_n), iter(_n); internal::simple_queue que; auto bfs = [&]() { std::fill(level.begin(), level.end(), -1); level[s] = 0; que.clear(); que.push(s); while (!que.empty()) { int v = que.front(); que.pop(); for (auto e : g[v]) { if (e.cap == 0 || level[e.to] >= 0) continue; level[e.to] = level[v] + 1; if (e.to == t) return; que.push(e.to); } } }; auto dfs = [&](auto self, int v, Cap up) { if (v == s) return up; Cap res = 0; int level_v = level[v]; for (int& i = iter[v]; i < (int)(g[v].size()); i++) { _edge& e = g[v][i]; if (level_v <= level[e.to] || g[e.to][e.rev].cap == 0) continue; Cap d = self(self, e.to, std::min(up - res, g[e.to][e.rev].cap)); if (d <= 0) continue; g[v][i].cap += d; g[e.to][e.rev].cap -= d; res += d; if (res == up) break; } return res; }; Cap flow = 0; while (flow < flow_limit) { bfs(); if (level[t] == -1) break; std::fill(iter.begin(), iter.end(), 0); while (flow < flow_limit) { Cap f = dfs(dfs, t, flow_limit - flow); if (!f) break; flow += f; } } return flow; } std::vector min_cut(int s) { std::vector visited(_n); internal::simple_queue que; que.push(s); while (!que.empty()) { int p = que.front(); que.pop(); visited[p] = true; for (auto e : g[p]) { if (e.cap && !visited[e.to]) { visited[e.to] = true; que.push(e.to); } } } return visited; } private: int _n; struct _edge { int to, rev; Cap cap; }; std::vector> pos; std::vector> g; }; int ceil_pow2(int n) { int x = 0; while ((1U << x) < (unsigned int)(n)) x++; return x; } template struct lazy_segtree { public: lazy_segtree() : lazy_segtree(0) {} lazy_segtree(int n) : lazy_segtree(std::vector(n, e())) {} lazy_segtree(const std::vector& v) : _n((int)v.size()) { log = ceil_pow2(_n); size = 1 << log; d = std::vector(2 * size, e()); lz = std::vector(size, id()); for (int i = 0; i < _n; i++) d[size + i] = v[i]; for (int i = size - 1; i >= 1; i--) { update(i); } } void set(int p, S x) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = x; for (int i = 1; i <= log; i++) update(p >> i); } S get(int p) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); return d[p]; } S prod(int l, int r) { assert(0 <= l && l <= r && r <= _n); if (l == r) return e(); l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push(r >> i); } S sml = e(), smr = e(); while (l < r) { if (l & 1) sml = op(sml, d[l++]); if (r & 1) smr = op(d[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return d[1]; } void apply(int p, F f) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = mapping(f, d[p]); for (int i = 1; i <= log; i++) update(p >> i); } void apply(int l, int r, F f) { assert(0 <= l && l <= r && r <= _n); if (l == r) return; l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push((r - 1) >> i); } { int l2 = l, r2 = r; while (l < r) { if (l & 1) all_apply(l++, f); if (r & 1) all_apply(--r, f); l >>= 1; r >>= 1; } l = l2; r = r2; } for (int i = 1; i <= log; i++) { if (((l >> i) << i) != l) update(l >> i); if (((r >> i) << i) != r) update((r - 1) >> i); } } template int max_right(int l) { return max_right(l, [](S x) { return g(x); }); } template int max_right(int l, G g) { assert(0 <= l && l <= _n); assert(g(e())); if (l == _n) return _n; l += size; for (int i = log; i >= 1; i--) push(l >> i); S sm = e(); do { while (l % 2 == 0) l >>= 1; if (!g(op(sm, d[l]))) { while (l < size) { push(l); l = (2 * l); if (g(op(sm, d[l]))) { sm = op(sm, d[l]); l++; } } return l - size; } sm = op(sm, d[l]); l++; } while ((l & -l) != l); return _n; } template int min_left(int r) { return min_left(r, [](S x) { return g(x); }); } template int min_left(int r, G g) { assert(0 <= r && r <= _n); assert(g(e())); if (r == 0) return 0; r += size; for (int i = log; i >= 1; i--) push((r - 1) >> i); S sm = e(); do { r--; while (r > 1 && (r % 2)) r >>= 1; if (!g(op(d[r], sm))) { while (r < size) { push(r); r = (2 * r + 1); if (g(op(d[r], sm))) { sm = op(d[r], sm); r--; } } return r + 1 - size; } sm = op(d[r], sm); } while ((r & -r) != r); return 0; } private: int _n, size, log; std::vector d; std::vector lz; void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); } void all_apply(int k, F f) { d[k] = mapping(f, d[k]); if (k < size) lz[k] = composition(f, lz[k]); } void push(int k) { all_apply(2 * k, lz[k]); all_apply(2 * k + 1, lz[k]); lz[k] = id(); } }; namespace internal { template struct csr { std::vector start; std::vector elist; csr(int n, const std::vector>& edges) : start(n + 1), elist(edges.size()) { for (auto e : edges) { start[e.first + 1]++; } for (int i = 1; i <= n; i++) { start[i] += start[i - 1]; } auto counter = start; for (auto e : edges) { elist[counter[e.first]++] = e.second; } } }; struct scc_graph { public: scc_graph(int n) : _n(n) {} int num_vertices() { return _n; } void add_edge(int from, int to) { edges.push_back({from, {to}}); } // @return pair of (# of scc, scc id) std::pair> scc_ids() { auto g = csr(_n, edges); int now_ord = 0, group_num = 0; std::vector visited, low(_n), ord(_n, -1), ids(_n); visited.reserve(_n); auto dfs = [&](auto self, int v) -> void { low[v] = ord[v] = now_ord++; visited.push_back(v); for (int i = g.start[v]; i < g.start[v + 1]; i++) { auto to = g.elist[i].to; if (ord[to] == -1) { self(self, to); low[v] = std::min(low[v], low[to]); } else { low[v] = std::min(low[v], ord[to]); } } if (low[v] == ord[v]) { while (true) { int u = visited.back(); visited.pop_back(); ord[u] = _n; ids[u] = group_num; if (u == v) break; } group_num++; } }; for (int i = 0; i < _n; i++) { if (ord[i] == -1) dfs(dfs, i); } for (auto& x : ids) { x = group_num - 1 - x; } return {group_num, ids}; } std::vector> scc() { auto ids = scc_ids(); int group_num = ids.first; std::vector counts(group_num); for (auto x : ids.second) counts[x]++; std::vector> groups(ids.first); for (int i = 0; i < group_num; i++) { groups[i].reserve(counts[i]); } for (int i = 0; i < _n; i++) { groups[ids.second[i]].push_back(i); } return groups; } private: int _n; struct edge { int to; }; std::vector> edges; }; } struct scc_graph { public: scc_graph() : internal(0) {} scc_graph(int n) : internal(n) {} void add_edge(int from, int to) { int n = internal.num_vertices(); assert(0 <= from && from < n); assert(0 <= to && to < n); internal.add_edge(from, to); } std::vector> scc() { return internal.scc(); } private: internal::scc_graph internal; }; template void conf(vector &A){ for(auto i:A){ cout< void conf(set &S){ for(auto i:S)cout< void conf(vector> &A){ rep(0,A.size()){ cout <<'('<< A[i].first <<" "<b)return a; else return b; } int min(int a,int b){ if(a>b)return b; else return a; } int modpow(int x,int n,const int mod){ int res=1; while(n>0){ int l=x%mod; if(n&1)res=(res%mod)*l%mod; x=l*l%mod; n>>=1; } return res; }//高速べき乗(modの値を返す)、計算量log(N) int ppow(int x,int n){ int res=1; while(n>0){ if(n&1)res=res*x; x=x*x; n>>=1; } return res; }//高速べき乗、計算量log(N) int modinv(int a, int m) { int b = m, u = 1, v = 0; while (b) { int t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= m; if (u < 0) u += m; return u; }//拡張EuClidの互除法、逆元を返す,a,mが互いに素ならOK、mがMOD,log(a); vi smallest_prime_factors(int n) { vi spf(n + 1); for (int i = 0; i <= n; i++) spf[i] = i; for (int i = 2; i * i <= n; i++) { if (spf[i] == i) { for (int j = i * i; j <= n; j += i) { if (spf[j] == j) { spf[j] = i; } } } } return spf; } vector enumdiv(int n) { vector S; for (int i = 1; 1LL*i*i <= n; i++) if (n%i == 0) { S.push_back(i); if (i*i != n) S.push_back(n / i); } sort(S.begin(), S.end()); return S; }//与えられた1つの数の約数をvectorで昇順で返す(重複なし),計算量√N vi soinsu(int N){ vi T; int n=N; int k=2; while(k*k<=n){ if(N%k==0){ N=N/k; T.push_back(k); } else{ k++; } } if(N!=1)T.push_back(N); if(T.size()==0){ //T.push_back(n); } return T; }//素因数分解した結果をviで返す(sort済み),O(√N),N=1の時に注意 int legendre(int N,int k){ int ans=0; int K=k; while(N>=K){ ans+=N/K; K*=k; } return ans; }//N!がkで何回割ることが出来るか vb Eratosthenes(int N){ vb IsPrime(N+1,true); IsPrime[0] = false; // 0は素数ではない IsPrime[1] = false; // 1は素数ではない for(int i=2; i*i<=N; ++i) // 0からsqrt(max)まで調べる if(IsPrime[i]) // iが素数ならば for(int j=2; i*j<=N; ++j) // (max以下の)iの倍数は IsPrime[i*j] = false; return IsPrime; }//Nまでの数が素数か素数でないかを返す、計算量nloglogn int lgcd(int A, int B){ //int a,b,C; while (A!=0 && B!=0){ if (A>B){ //a=A/B; A-=A/B*B; }else{ //b=B/A; B-=B/A*A; } //out(7) } //C=max(A,B); return max(A,B); } int lcm(int a, int b) { return a / lgcd(a, b) * b; } void yn(bool A){ if(A){ out("Yes"); }else{ out("No"); } } void YN(bool A){ if(A){ out("YES"); }else{ out("NO"); } } double max(double a,double b){ if(a>b){ return a; }else{ return b; } } double min(double a,double b){ if(a>b){ return b; }else{ return a; } } vvi mat_mul(vvi &a, vvi &b,const int MOD) { vvi res(a.size(), vi(b[0].size(),0)); for (int i = 0; i < a.size(); i++) { for (int j = 0; j < b[0].size(); j++) { for (int k = 0; k < b.size(); k++) { res[i][j] += a[i][k]*b[k][j]%MOD; res[i][j]%=MOD; } } } return res; } vvi mat_pow(vvi a, int n,const int MOD) { vvi res(a.size(), vi(a.size())); // 単位行列で初期化 for (int i = 0; i < a.size(); i++) res[i][i] = 1; // 繰り返し二乗法 while (n > 0) { if (n & 1) res = mat_mul(a, res,MOD); a = mat_mul(a, a,MOD); n >>= 1; } return res; } template struct segtree { public: segtree() : segtree(0) {} segtree(int n) : segtree(std::vector(n, e())) {} segtree(const std::vector& v) : _n((v.size())) { log = ceil_pow2(_n); size = 1 << log; d = std::vector(2 * size, e()); for (int i = 0; i < _n; i++) d[size + i] = v[i]; for (int i = size - 1; i >= 1; i--) { update(i); } } void set(int p, S x) { assert(0 <= p && p < _n); p += size; d[p] = x; for (int i = 1; i <= log; i++) update(p >> i); } S get(int p) { assert(0 <= p && p < _n); return d[p + size]; } S prod(int l, int r) { assert(0 <= l && l <= r && r <= _n); S sml = e(), smr = e(); l += size; r += size; while (l < r) { if (l & 1) sml = op(sml, d[l++]); if (r & 1) smr = op(d[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return d[1]; } template int max_right(int l) { return max_right(l, [](S x) { return f(x); }); } template int max_right(int l, F f) { assert(0 <= l && l <= _n); assert(f(e())); if (l == _n) return _n; l += size; S sm = e(); do { while (l % 2 == 0) l >>= 1; if (!f(op(sm, d[l]))) { while (l < size) { l = (2 * l); if (f(op(sm, d[l]))) { sm = op(sm, d[l]); l++; } } return l - size; } sm = op(sm, d[l]); l++; } while ((l & -l) != l); return _n; } template int min_left(int r) { return min_left(r, [](S x) { return f(x); }); } template int min_left(int r, F f) { assert(0 <= r && r <= _n); assert(f(e())); if (r == 0) return 0; r += size; S sm = e(); do { r--; while (r > 1 && (r % 2)) r >>= 1; if (!f(op(d[r], sm))) { while (r < size) { r = (2 * r + 1); if (f(op(d[r], sm))) { sm = op(d[r], sm); r--; } } return r + 1 - size; } sm = op(d[r], sm); } while ((r & -r) != r); return 0; } private: int _n, size, log; std::vector d; void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); } }; struct dsu { public: dsu() : _n(0) {} dsu(int n) : _n(n), parent_or_size(n, -1) {} int merge(int a, int b) { assert(0 <= a && a < _n); assert(0 <= b && b < _n); int x = leader(a), y = leader(b); if (x == y) return x; if (-parent_or_size[x] < -parent_or_size[y]) std::swap(x, y); parent_or_size[x] += parent_or_size[y]; parent_or_size[y] = x; return x; } bool same(int a, int b) { assert(0 <= a && a < _n); assert(0 <= b && b < _n); return leader(a) == leader(b); } int leader(int a) { assert(0 <= a && a < _n); if (parent_or_size[a] < 0) return a; return parent_or_size[a] = leader(parent_or_size[a]); } int size(int a) { assert(0 <= a && a < _n); return -parent_or_size[leader(a)]; } std::vector> groups() { std::vector leader_buf(_n), group_size(_n); for (int i = 0; i < _n; i++) { leader_buf[i] = leader(i); group_size[leader_buf[i]]++; } std::vector> result(_n); for (int i = 0; i < _n; i++) { result[i].reserve(group_size[i]); } for (int i = 0; i < _n; i++) { result[leader_buf[i]].push_back(i); } result.erase( std::remove_if(result.begin(), result.end(), [&](const std::vector& v) { return v.empty(); }), result.end()); return result; } private: int _n; // root node: -1 * component size // otherwise: parent std::vector parent_or_size; }; struct UnionFind { vector par, rank, siz; // 構造体の初期化 UnionFind(int n) : par(n,-1), rank(n,0), siz(n,1) { } // 根を求める int leader(int x) { if (par[x]==-1) return x; // x が根の場合は x を返す else return par[x] = leader(par[x]); // 経路圧縮 } // x と y が同じグループに属するか (= 根が一致するか) bool same(int x, int y) { return leader(x)==leader(y); } // x を含むグループと y を含むグループを併合する bool merge(int x, int y) { int rx = leader(x), ry = leader(y); // x 側と y 側の根を取得する if (rx==ry) return false; // すでに同じグループのときは何もしない // union by rank par[ry] = rx; // ry を rx の子とする siz[rx] += siz[ry]; // rx 側の siz を調整する return true; } // x を含む根付き木のサイズを求める int size(int x) { return siz[leader(x)]; } }; vi dikstra(int s,int V,vvpi &G){ vi d(V,BIG); priority_queue,greater> que; d[s]=0; que.push(Pi(0,s));//Pi(距離、向かう頂点) while(!que.empty()){ Pi p=que.top();que.pop(); int v=p.second; if(d[v]d[v]+b){ d[a]=d[v]+b; que.push(Pi(d[a],a)); } } } return d; }//始点は0start /* Pi op(Pi a, Pi b) { return max(a,b); } Pi e() { return Pi(0,-BIG); }*/ //int target; //bool f(int v) { return v >= target; } struct loopdfs{ public: int flgggg; bool gg; bool x; int start; loopdfs(int n){ flgggg=-1; gg=false; x=false; start=n;//0-indexed }; void loops(int a,int b,vvi &G,vb &seen,vi &loop,vi &prev){ seen[a]=true; for (auto nv : G[a]) { if(nv==b)continue; if(gg)continue; if (seen[nv]){ flgggg=nv; gg=true; x=true; break; } loops(nv,a,G,seen,loop,prev); } if(!gg&&x){ prev.push_back(a); } if(gg){ loop.push_back(a); } if(flgggg==a)gg=false; if(a==start){ reverse(loop.begin(),loop.end()); reverse(prev.begin(),prev.end()); } }//有向なfunctional graphのみ動作確認、 }; vvi calcNext(const string &S) { int n = (int)S.size(); vector > res(n+1, vector(26, n)); for (int i = n-1; i >= 0; --i) { for (int j = 0; j < 26; ++j) res[i][j] = res[i+1][j]; res[i][S[i]-'a'] = i; } return res; } /* double op(double a,double b){ return min(a,b); } double e(){ return BIG; } double mapping(double a, double b){ return a+b; } double composition(double a,double b){ return a+b; } double id(){return 0;} */ vi compress(vi &A){ vi vals=A; sot(vals); vals.erase(unique(vals.begin(), vals.end()), vals.end()); vi X(A.size()); rep(0,A.size()){ X[i]=lower_bound(vals.begin(),vals.end(),A[i])-vals.begin(); } return X; }//0-indexed template vector compress(vector &C1, vector &C2,int w) { vector vals; int N = (int)C1.size(); for (int i = 0; i < N; i++) { for (int d = 0; d <= 0; d++) { // for (T d = 0; d <= 0; d++) でも良い T tc1 = C1[i] - d; if(tc1>=0){ vals.push_back(tc1); } T tc2 = C2[i] + d; if(tc2<=w){ vals.push_back(tc2); } } } sort(vals.begin(), vals.end()); vals.erase(unique(vals.begin(), vals.end()), vals.end()); for (int i = 0; i < N; i++) { C1[i] = lower_bound(vals.begin(), vals.end(), C1[i]) - vals.begin(); C2[i] = lower_bound(vals.begin(), vals.end(), C2[i]) - vals.begin(); } return vals; }//2次元座標圧縮 int kruskal(vector &A,int V){ rsot(A); int M=A.size(); dsu uf(V); int res=0; rep(0,M){ int a=get<1>(A[i]);int b=get<2>(A[i]); int c=get<0>(A[i]); if(!uf.same(a,b)){ uf.merge(a,b); res+=c; } } bool flag=false; rep(0,V){ if(!uf.same(i,0))flag=true; } if(flag){ res=-1; } return res; } string encode(string& str) { string ret = ""; // 答えを格納 int n=(int)(str.size()); for (int l = 0; l < n;) { int r = l + 1; while(r < n && str[l] == str[r]){ r++; } ret.push_back(str[l]); char num_str = (char)((r - l)+'0'); // 出現回数 ret += num_str; l = r; } return ret; } bool revsort(const Pi &a,const Pi &b){ auto[x,y]=a;auto[o,p]=b; if(x>o){ return true; }else{ if(x==o){ if(y void rotate_left(vector> &A){ int n=A.size(); vector X(n,vector(n)); rep(0,n){ jrep(0,n){ X[i][j]=A[n-j-1][i]; } } A=X; //return A; } template void rotate_right(vector> &A){ int n=A.size(); vector X(n,vector(n)); rep(0,n){ jrep(0,n){ X[i][j]=A[j][n-i-1]; } } A=X; //return A; } template void rotate_left180(vector> &A){ int n=A.size(); vector X(n,vector(n)); rep(0,n){ jrep(0,n){ X[i][j]=A[n-i-1][n-j-1]; } } A=X; //return A; } bool ang_ope(const Pi a,const Pi b){ auto area=[&](Pi a){ if(a.first==0&&b.first==0){ return 0; }else{ if(a.second>0){ return 0; }else{ return 1; } } }; if(area(a)a.second*b.first; }//[0,2π]の区間を順にソート vvi group_com(int N,int k){ vi now; vvi ans; function dfs= [&](int ind,int res){ if(res==k){ ans.pb(now); return; } for(int i=ind;i=0&&x<=H-1&&y>=0&&y<=W-1&&(!G[x][y])){ predfs1(G,x,y,H,W); // 再帰的に探索 } } } void prebfs1(vvc &G,vvi &A,int h,int w,int H,int W){ vi dh={1,0,-1,0}; vi dw={0,1,0,-1}; A[h][w]=0; queue que; que.push(Pi(h,w)); while(!que.empty()){ Pi v=que.front();que.pop(); rep(0,4){ int x=v.first+dh[i];int y=v.second+dw[i]; if(x>=0&&x<=H-1&&y>=0&&y<=W-1&&(A[x][y]==-1)&&G[x][y]!='#'){ que.push(Pi(x,y)); A[x][y]=A[v.first][v.second]+1; } } } return ; } void predfs(vb &seen,int a,vvi &G){ if(seen[a])return; seen[a]=true; for(int i:G[a]){ if(seen[i])continue; predfs(seen,i,G); // 再帰的に探索 } } vi prebfs(vvi &G,int a,int N){ vi dist(N, -1); // 全頂点を「未訪問」に初期化 queue que; dist[a] = 0; que.push(a); // 0 を橙色頂点にする while (!que.empty()) { int v = que.front(); // キューから先頭頂点を取り出す que.pop(); for (int nv : G[v]) { if (dist[nv] != -1) continue; dist[nv] = dist[v] + 1; que.push(nv); } } return dist; } void bfs1(vvc &G,vvi &A,int h,int w,int H,int W,int &u){ if(G[h][w]=='.'){ A[h][w]=-2; return; } if(A[h][w]!=-1)return; u++; vi dh={1,0,-1,0}; vi dw={0,1,0,-1}; A[h][w]=h*H+w; queue que; que.push(Pi(h,w)); while(!que.empty()){ Pi v=que.front();que.pop(); rep(0,4){ int x=v.first+dh[i];int y=v.second+dw[i]; if(x>=0&&x<=H-1&&y>=0&&y<=W-1&&(A[x][y]==-1)&&G[x][y]!='.'){ que.push(Pi(x,y)); A[x][y]=A[v.first][v.second]; } } } return; } signed main(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); int N;cin>>N; vi A(25,1); A[0]=ppow(2,23); rep(1,25)A[i]=ppow(2,25-i); vb D=Eratosthenes(70000000); vi f; //conf(A); rep(0,70000000)if(D[i])f.pb(i); rep(2,25){ int y=(A[i-1]+A[i]-1)/A[i]; int k=upper_bound(ALL(f),y)-f.begin(); A[i]*=f[k]; } bool r=true; rep(0,N-1)if(A[i]>=A[i+1])r=false; vi ans(N);rep(0,N)ans[i]=A[i]; conf(ans); }