#line 1 "c.cpp" #include #include #define rep(i,n) for (int i = 0; i < int(n); ++i) #define repp(i,n,m) for (int i = m; i < int(n); ++i) #define reb(i,n) for (int i = int(n)-1; i >= 0; --i) #define all(v) v.begin(),v.end() using namespace std; using namespace atcoder; using ll = long long; using ull = unsigned long long; using ld = long double; using P = pair; using PL = pair; using pdd = pair; using pil = pair; using pli = pair; templateistream &operator>>(istream &is,vector &v){for(auto &e:v)is>>e;return is;} templatebool range(T a,T b,T x){return (a<=x&&xbool rrange(T a,T b,T c,T d,T x,T y){return (range(a,c,x)&&range(b,d,y));} templatevoid rev(vector &v){reverse(v.begin(),v.end());} void revs(string &s) {reverse(s.begin(),s.end());} templatevoid sor(vector &v, int f=0){sort(v.begin(),v.end());if(f!=0) rev(v);} templatebool chmin(T &a,const T &b){if(a>b){a=b;return true;}return false;} templatebool chmax(T &a,const T &b){if(avoid uniq(vector &v){sor(v);v.erase(unique(v.begin(),v.end()),v.end());} templatevoid print(pair a); templatevoid print(vector v); templatevoid print(vector> v); void print(){ putchar(' '); } void print(bool a){ printf("%d", a); } void print(int a){ printf("%d", a); } void print(long a){ printf("%ld", a); } void print(long long a){ printf("%lld", a); } void print(char a){ printf("%c", a); } void print(char a[]){ printf("%s", a); } void print(const char a[]){ printf("%s", a); } void print(long double a){ printf("%.15Lf", a); } void print(const string& a){ for(auto&& i : a) print(i); } void print(unsigned int a){ printf("%u", a); } void print(unsigned long long a) { printf("%llu", a); } template void print(const T& a){ cout << a; } int out(){ putchar('\n'); return 0; } template int out(const T& t){ print(t); putchar('\n'); return 0; } template int out(const Head& head, const Tail&... tail){ print(head); putchar(' '); out(tail...); return 0; } templatevoid print(pair a){print(a.first);print(),print(a.second);} templatevoid print(vector v){for(auto ite=v.begin();ite!=v.end();){print(*ite);if(++ite!=v.end())print();}} templatevoid print(vector> v){for(auto ite=v.begin();ite!=v.end();){print(*ite);if(++ite!=v.end())out();}} void yes(){out("Yes");} void no (){out("No");} void yn (bool t){if(t)yes();else no();} void fast_io(){cin.tie(0); ios::sync_with_stdio(0); cout< dx = {0,1,0,-1,1,1,-1,-1}; const vector dy = {1,0,-1,0,1,-1,-1,1}; const string ALP = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; const string alp = "abcdefghijklmnopqrstuvwxyz"; const string NUM = "0123456789"; } // namespace noya2 using namespace noya2; void solve(){ int n; cin >> n; vector a(n), b(n); cin >> a >> b; vector ids(n); iota(all(ids),0); auto comp = [&](int l, int r){ return a[l] < a[r]; }; sort(all(ids),comp); vector inv(n); rep(i,n) inv[ids[i]] = i; vector hs(n), ts(n); rep(i,n) hs[i] = a[ids[i]], ts[i] = b[ids[i]]; const int lg = 20; vector rs(n); rep(i,n) rs[i] = upper_bound(all(hs),ts[i]) - hs.begin(); vector> dp(lg,vector(n)); vector rui(n+1,-1), arg(n+1,-1); rep(i,n){ rui[i+1] = rui[i]; arg[i+1] = arg[i]; if (chmax(rui[i+1],rs[i])) arg[i+1] = i; } rep(i,n){ dp[0][i] = arg[rs[i]]; } rep(l,lg-1){ rep(i,n){ dp[l+1][i] = (dp[l][i] == -1 ? -1 : dp[l][dp[l][i]]); } } int q; cin >> q; rep(i,q){ int u, v; cin >> u >> v; u--, v--; u = inv[u], v = inv[v]; if (v < rs[u]){ out(1); continue; } u = dp[0][u]; if (u == -1){ out(-1); continue; } int ans = 1; for (int k = lg-1; k >= 0; k--){ if (dp[k][u] != -1 && v >= rs[dp[k][u]]){ ans += 1 << k; u = dp[k][u]; } } out(v < rs[u] ? ans+1 : -1); } } int main(){ fast_io(); int t = 1; //cin >> t; while(t--) solve(); }