#line 2 "/Users/noya2/Desktop/Noya2_library/template/template.hpp" using namespace std; #include #line 1 "/Users/noya2/Desktop/Noya2_library/template/inout_old.hpp" namespace noya2 { template ostream &operator<<(ostream &os, const pair &p){ os << p.first << " " << p.second; return os; } template istream &operator>>(istream &is, pair &p){ is >> p.first >> p.second; return is; } template ostream &operator<<(ostream &os, const vector &v){ int s = (int)v.size(); for (int i = 0; i < s; i++) os << (i ? " " : "") << v[i]; return os; } template istream &operator>>(istream &is, vector &v){ for (auto &x : v) is >> x; return is; } void in() {} template void in(T &t, U &...u){ cin >> t; in(u...); } void out() { cout << "\n"; } template void out(const T &t, const U &...u){ cout << t; if (sizeof...(u)) cout << sep; out(u...); } template void out(const vector> &vv){ int s = (int)vv.size(); for (int i = 0; i < s; i++) out(vv[i]); } struct IoSetup { IoSetup(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); cerr << fixed << setprecision(7); } } iosetup_noya2; } // namespace noya2 #line 1 "/Users/noya2/Desktop/Noya2_library/template/const.hpp" namespace noya2{ const int iinf = 1'000'000'007; const long long linf = 2'000'000'000'000'000'000LL; const long long mod998 = 998244353; const long long mod107 = 1000000007; const long double pi = 3.14159265358979323; const vector 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"; void yes(){ cout << "Yes\n"; } void no(){ cout << "No\n"; } void YES(){ cout << "YES\n"; } void NO(){ cout << "NO\n"; } void yn(bool t){ t ? yes() : no(); } void YN(bool t){ t ? YES() : NO(); } } // namespace noya2 #line 2 "/Users/noya2/Desktop/Noya2_library/template/utils.hpp" #line 6 "/Users/noya2/Desktop/Noya2_library/template/utils.hpp" namespace noya2{ unsigned long long inner_binary_gcd(unsigned long long a, unsigned long long b){ if (a == 0 || b == 0) return a + b; int n = __builtin_ctzll(a); a >>= n; int m = __builtin_ctzll(b); b >>= m; while (a != b) { int mm = __builtin_ctzll(a - b); bool f = a > b; unsigned long long c = f ? a : b; b = f ? b : a; a = (c - b) >> mm; } return a << std::min(n, m); } template T gcd_fast(T a, T b){ return static_cast(inner_binary_gcd(std::abs(a),std::abs(b))); } long long sqrt_fast(long long n) { if (n <= 0) return 0; long long x = sqrt(n); while ((x + 1) * (x + 1) <= n) x++; while (x * x > n) x--; return x; } template T floor_div(const T n, const T d) { assert(d != 0); return n / d - static_cast((n ^ d) < 0 && n % d != 0); } template T ceil_div(const T n, const T d) { assert(d != 0); return n / d + static_cast((n ^ d) >= 0 && n % d != 0); } template void uniq(std::vector &v){ std::sort(v.begin(),v.end()); v.erase(unique(v.begin(),v.end()),v.end()); } template inline bool chmin(T &x, U y) { return (y < x) ? (x = y, true) : false; } template inline bool chmax(T &x, U y) { return (x < y) ? (x = y, true) : false; } template inline bool range(T l, T x, T r){ return l <= x && x < r; } } // namespace noya2 #line 8 "/Users/noya2/Desktop/Noya2_library/template/template.hpp" #define rep(i,n) for (int i = 0; i < (int)(n); i++) #define repp(i,m,n) 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 ll = long long; using ld = long double; using uint = unsigned int; using ull = unsigned long long; using pii = pair; using pll = pair; using pil = pair; using pli = pair; namespace noya2{ /* ~ (. _________ . /) */ } using namespace noya2; #line 2 "c.cpp" #line 2 "/Users/noya2/Desktop/Noya2_library/data_structure/segment_tree.hpp" namespace noya2{ template struct segtree { public: segtree() : segtree(0) {} segtree(int n) : segtree(std::vector(n, e())) {} segtree(const std::vector& v) : _n(int(v.size())) { log = 0; size = 1; while (size < _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]); } }; } // namespace noya2 #line 4 "c.cpp" ll gethash(ll x, ll y, ll z){ return (x << 40) | (y << 20) | z; } const int bmx = (1 << 20) - 1; ll get1(ll x){ return x >> 40; } ll get2(ll x){ return x >> 20 & bmx; } ll get3(ll x){ return x & bmx; } ll op(ll a, ll b){ return gethash(max(get1(a),get1(b)),max(get2(a),get2(b)),max(get3(a),get3(b))); } ll e(){ return 0; } const int nmx = 100000; const int amx = 100010; // const bool LOCAL = true; const bool LOCAL = false; #line 2 "/Users/noya2/Desktop/Noya2_library/misc/rng.hpp" #line 4 "/Users/noya2/Desktop/Noya2_library/misc/rng.hpp" namespace noya2 { // [0, 2^64 - 1) ull rng() { static ull _x = 88172645463325252UL; return _x ^= _x << 7, _x ^= _x >> 9; } // [l, r] ll rng(ll l, ll r) { assert(l <= r); return l + rng() % ull(r - l + 1); } // [l, r) ll randint(ll l, ll r) { assert(l < r); return l + rng() % ull(r - l); } // [0.0, 1.0) ld rnd() { return rng() * 5.42101086242752217004e-20; } // [l, r) ld rnd(ld l, ld r) { assert(l < r); return l + rnd() * (r - l); } } // namespace noya2 #line 35 "c.cpp" void solve(){ int n = [&]{ if (LOCAL){ return nmx; } else { int ret; in(ret); return ret; } }(); vector a = [&]{ if (LOCAL){ vector ret(n); rep(i,n){ ret[i] = randint(0,1000); } return ret; } else { vector ret(n); in(ret); return ret; } }(); a.resize(nmx); n = nmx; vector ptr(n); vector> ids(amx); { rep(i,n){ ptr[i] = ids[a[i]].size(); ids[a[i]].emplace_back(i); } rep(i,amx){ ids[i].emplace_back(bmx-1); ids[i].emplace_back(bmx-1); } } const int bk = 400; const int cseg = nmx / bk; vector> seg(cseg); ll seginf = gethash(bmx,bmx,bmx); vector vinf(amx,seginf); auto get = [&](int i, int j, int k){ return gethash(i+1,j+1,k+1); }; rep(si,cseg){ int l = bk * si; auto init = vinf; vector done(amx,false); repp(i,l,n){ if (done[a[i]]) continue; done[a[i]] = true; init[a[i]] = get(ids[a[i]][ptr[i]],ids[a[i]][ptr[i]+1],ids[a[i]][ptr[i]+2]); } seg[si] = segtree(init); } vector done(n,false); segtree buf(vinf); auto naive = [&](int l, int r) -> int { repp(i,l,r){ if (done[a[i]]) continue; done[a[i]] = true; buf.set(a[i],get(ids[a[i]][ptr[i]],ids[a[i]][ptr[i]+1],ids[a[i]][ptr[i]+2])); } int r3 = buf.max_right(0, [&](ll x){ return get3(x)-1 < r; }); int r2 = buf.max_right(0, [&](ll x){ return get2(x)-1 < r; }); int r1 = buf.max_right(0, [&](ll x){ return get1(x)-1 < r; }); int ans = r3 + r2 + r1; if (ans == r - l){ if (r3 == 0){ if (r2 == 0){ ans -= 2; } else { ans -= 1; } } } else if (ans == r - l - 1){ if (r2 == 0){ ans -= 1; } } repp(i,l,r){ buf.set(a[i],seginf); } repp(i,l,r){ done[a[i]] = false; } return ans; }; auto calc = [&](int l, int r) -> int { vector memo1, memo2, memo3; vector memo; int si = ceil_div(l,bk); int nl = si * bk; if (si == cseg || r < nl){ return naive(l,r); } assert(0 <= si && si < cseg); assert(0 <= nl && nl <= n); repp(i,l,nl){ if (done[a[i]]) continue; done[a[i]] = true; assert(0 <= a[i] && a[i] < amx); memo.emplace_back(a[i],seg[si].get(a[i])); seg[si].set(a[i],get(ids[a[i]][ptr[i]],ids[a[i]][ptr[i]+1],ids[a[i]][ptr[i]+2])); } int r3 = seg[si].max_right(0, [&](ll x){ return get3(x)-1 < r; }); int r2 = seg[si].max_right(0, [&](ll x){ return get2(x)-1 < r; }); int r1 = seg[si].max_right(0, [&](ll x){ return get1(x)-1 < r; }); int ans = r3 + r2 + r1; if (ans == r - l){ if (r3 == 0){ if (r2 == 0){ ans -= 2; } else { ans -= 1; } } } else if (ans == r - l - 1){ if (r2 == 0){ ans -= 1; } } for (auto [p, v] : memo){ seg[si].set(p, v); } repp(i,l,nl){ done[a[i]] = false; } return ans; }; int q = [&]{ if (LOCAL){ return 100000; } else { int ret; in(ret); return ret; } }(); int pans = 0; while (q--){ auto [l, r] = [&] -> pii { if (LOCAL){ int il = randint(0,n); int ir = randint(0,n); if (il > ir) swap(il,ir); ir++; return {il, ir}; } else { ll w, z; in(w,z); int il = w ^ pans; int ir = z ^ pans; il--; return {il, ir}; } }(); assert(0 <= l && l < r && r <= n); int ans = calc(l,r); if (LOCAL){ // pass } else { out(ans); } pans = ans; } if (LOCAL){ out(pans); } else { // pass } } int main(){ int t = 1; //in(t); while (t--) { solve(); } }