/** * code generated by JHelper * More info: https://github.com/AlexeyDmitriev/JHelper * @author */ #include using namespace std; using ll = long long; //#pragma GCC optimize("O3") //#pragma GCC optimize("unroll-loops") #define VI vector #define G(size_1) vector>(size_1, vector()) #define SZ(x) ((int)(x).size()) #define READ ({int t;cin >> t;t;}) #define PII pair #define FOR(i, _begin, _end) for (__typeof(_end) end = _end, begin = _begin, i = (begin) - ((begin) > (end)); i != (end) - ((begin) > (end)); i += 1 - 2 * ((begin) > (end))) #define REP(i, end) for (__typeof(end) i = 0, _len = (end); i < (_len); i += 1) #define ALL(x) (x).begin(),(x).end() #define F first #define S second #define y0 y3487465 #define y1 y8687969 #define j0 j1347829 #define j1 j234892 #define MOD(x, m) ((((x) % (m)) + (m)) % (m)) #define BIT(n) (1LL<<(n)) #define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() ); #define EB emplace_back #define PB push_back #define fcout cout << fixed << setprecision(12) #define fcerr cerr << fixed << setprecision(12) #define print(x) cout << (x) << endl #define fprint(x) cout << fixed << setprecision(12) << (x) << endl # define BYE(a) do { cout << (a) << endl; return ; } while (false) #ifdef DEBUG #define ERR(args...) { string _s = #args; replace(_s.begin(), _s.end(), ',', ' '); stringstream _ss(_s); istream_iterator _it(_ss); _err(cerr,_it, args); } #define DBG(x) cerr << #x << " is " << x << endl; #else #define DBG(x) {}; #define ERR(args...) {}; #endif void _err(std::ostream& cerr,istream_iterator it) {cerr << endl;} template void _err(std::ostream& cerr, istream_iterator it, T a, Args... args) { cerr << *it << " = " << a << " "; _err(cerr,++it, args...); } const double pi = 2 * acos(.0); const int inf = 0x3f3f3f3f; const ll mod = (ll) (1e9) + 7; templatebool Chmax(T &a, const T &b) { if (abool Chmin(T &a, const T &b) { if (b istream& operator >> (istream& is, vector& V) { for(auto&& ele : V)is >> ele; return is; } template ostream& operator << (ostream& os, const vector V) { os << "["; int cnt = 0; T curr; if(!V.empty()){ for (int i = 0; i < V.size() - 1; ++i) { if(V[i] == curr)cnt ++; else cnt = 0; if(cnt == 4)os << "... "; if(cnt < 4) os << i << ":" << V[i] << " "; curr = V[i]; } os << V.size() - 1 << ":" << V.back(); } os << "]\n"; return os; } template ostream& operator << (ostream& os, const pair P) { os << "("; os << P.first << "," << P.second; os << ")"; return os; } template ostream& operator << (ostream& os, const set V) { os << "{"; if(!V.empty()){ auto it = V.begin(); for (int i = 0; i < V.size() -1; ++i) { os << *it << " "; it++; } os << *it; } os << "}\n"; return os; } template ostream& operator << (ostream& os, const unordered_set V) { os << "{"; if(!V.empty()){ auto it = V.begin(); for (int i = 0; i < V.size() -1; ++i) { os << *it << " "; it++; } os << *it; } os << "}\n"; return os; } template ostream& operator << (ostream& os, const multiset V) { os << "{"; if(!V.empty()){ auto it = V.begin(); for (int i = 0; i < V.size() -1; ++i) { os << *it << " "; it++; } os << *it; } os << "}"; return os; } template ostream& operator << (ostream& os, const map V) { os << "{"; if(!V.empty()){ auto it = V.begin(); for (int i = 0; i < V.size() -1; ++i) { os << "("; os << it->first << "," << it->second; os << ") "; it++; } os << "("; os << it->first << "," << it->second; os << ")"; } os << "}\n"; return os; } template ostream& operator << (ostream& os, const unordered_map V) { os << "{"; if(!V.empty()){ auto it = V.begin(); for (int i = 0; i < V.size() -1; ++i) { os << "("; os << it->first << "," << it->second; os << ") "; it++; } os << "("; os << it->first << "," << it->second; os << ")"; } os << "}\n"; return os; } template ostream& operator << (ostream& os, const deque V) { os << "["; if (!V.empty()) { for (int i = 0; i < V.size() - 1; ++i) { os << V[i] << "->"; } if (!V.empty())os << V.back(); } os << "]\n"; return os; }; template ostream& operator << (ostream& os, const priority_queue V) { priority_queue _V = V; os << "["; if(!_V.empty()){ while(_V.size() > 1){ os << _V.top() << "->"; _V.pop(); } os << _V.top(); } os << "]\n"; return os; }; template struct y_combinator { F f; // the lambda will be stored here // a forwarding operator(): template decltype(auto) operator()(Args&&... args) const { // we pass ourselves to f, then the arguments. // the lambda should take the first argument as `auto&& recurse` or similar. return f(*this, std::forward(args)...); } }; // helper function that deduces the type of the lambda: template y_combinator> recursive(F&& f){ return {std::forward(f)}; } struct hash_pair { template size_t operator()(const pair& p) const { auto hash1 = hash{}(p.first); auto hash2 = hash{}(p.second); return hash1 ^ hash2; } }; template std::vector multi_vector(int n, U v) { return std::vector(n, v); } template auto multi_vector(int n, Args... args) { auto val = multi_vector(std::forward(args)...); return std::vector(n, std::move(val)); } template< typename Monoid > struct SegmentTree { using F = function< Monoid(Monoid, Monoid) >; int sz; vector< Monoid > seg; const F f; const Monoid M1; SegmentTree(int n, const F f, const Monoid &M1) : f(f), M1(M1) { sz = 1; while(sz < n) sz <<= 1; seg.assign(2 * sz, M1); } void set(int k, const Monoid &x) { seg[k + sz] = x; } void build() { for(int k = sz - 1; k > 0; k--) { seg[k] = f(seg[2 * k + 0], seg[2 * k + 1]); } } void update(int k, const Monoid &x) { k += sz; seg[k] = x; while(k >>= 1) { seg[k] = f(seg[2 * k + 0], seg[2 * k + 1]); } } Monoid query(int a, int b) { Monoid L = M1, R = M1; for(a += sz, b += sz; a < b; a >>= 1, b >>= 1) { if(a & 1) L = f(L, seg[a++]); if(b & 1) R = f(seg[--b], R); } return f(L, R); } Monoid operator[](const int &k) const { return seg[k + sz]; } template< typename C > int find_subtree(int a, const C &check, Monoid &M, bool type) { while(a < sz) { Monoid nxt = type ? f(seg[2 * a + type], M) : f(M, seg[2 * a + type]); if(check(nxt)) a = 2 * a + type; else M = nxt, a = 2 * a + 1 - type; } return a - sz; } template< typename C > int find_first(int a, const C &check) { Monoid L = M1; if(a <= 0) { if(check(f(L, seg[1]))) return find_subtree(1, check, L, false); return -1; } int b = sz; for(a += sz, b += sz; a < b; a >>= 1, b >>= 1) { if(a & 1) { Monoid nxt = f(L, seg[a]); if(check(nxt)) return find_subtree(a, check, L, false); L = nxt; ++a; } } return -1; } template< typename C > int find_last(int b, const C &check) { Monoid R = M1; if(b >= sz) { if(check(f(seg[1], R))) return find_subtree(1, check, R, true); return -1; } int a = sz; for(b += sz; a < b; a >>= 1, b >>= 1) { if(b & 1) { Monoid nxt = f(seg[--b], R); if(check(nxt)) return find_subtree(b, check, R, true); R = nxt; } } return -1; } }; class Task { public: ll power_mod(ll x, ll y, ll p) { if (y < 0)return 0; ll res = 1; x = x % p; while (y) { if (y & 1) res = (res * x) % p; y = y >> 1; x = (x * x) % p; } return res; } void solve(std::istream& cin, std::ostream& cout, std::ostream& cerr) { int N;cin >> N; VI a(N), c(N), b(N); cin >> a >> c; REP(i,N)a[i]--, c[i]--; SegmentTree seg(N+1, [](int a, int b){return min(a,b);}, inf); REP(i,N)b[c[i]] = i; ERR(a,b,c) REP(i,N)seg.update(i, b[a[i]]); VI ans(N, 1); REP(i,N){ ERR(seg.query(i,N), b[a[i]]) if(seg.query(i,N) < b[a[i]])ans[a[i]] = 0; } ERR(seg.seg) REP(i,N)if(ans[i])print(i+1); } }; #undef int int main() { Task solver; std::istream& in(std::cin); std::ostream& out(std::cout); std::ostringstream err; in.tie(0); ios::sync_with_stdio(0); solver.solve(in, out,err); return 0; }