#line 1 "/home/maspy/compro/library/my_template.hpp" #include using namespace std; using ll = long long; using pi = pair; using vi = vector; using u32 = unsigned int; using u64 = unsigned long long; using i128 = __int128; template using vc = vector; template using vvc = vector>; template using vvvc = vector>; template using vvvvc = vector>; template using vvvvvc = vector>; template using pq = priority_queue; template using pqg = priority_queue, greater>; #define vec(type, name, ...) vector name(__VA_ARGS__) #define vv(type, name, h, ...) \ vector> name(h, vector(__VA_ARGS__)) #define vvv(type, name, h, w, ...) \ vector>> name( \ h, vector>(w, vector(__VA_ARGS__))) #define vvvv(type, name, a, b, c, ...) \ vector>>> name( \ a, vector>>( \ b, vector>(c, vector(__VA_ARGS__)))) #define FOR_(n) for (ll _ = 0; (_) < (ll)(n); ++(_)) #define FOR(i, n) for (ll i = 0; (i) < (ll)(n); ++(i)) #define FOR3(i, m, n) for (ll i = (m); (i) < (ll)(n); ++(i)) #define FOR_R(i, n) for (ll i = (ll)(n)-1; (i) >= 0; --(i)) #define FOR3_R(i, m, n) for (ll i = (ll)(n)-1; (i) >= (ll)(m); --(i)) #define FOR_subset(t, s) for (ll t = s; t >= 0; t = (t == 0 ? -1 : (t - 1) & s)) #define all(x) x.begin(), x.end() #define len(x) ll(x.size()) #define elif else if #define eb emplace_back #define mp make_pair #define mt make_tuple #define fi first #define se second #define stoi stoll template T SUM(vector &A) { T sum = T(0); for (auto &&a: A) sum += a; return sum; } #define MIN(v) *min_element(all(v)) #define MAX(v) *max_element(all(v)) #define LB(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define UB(c, x) distance((c).begin(), upper_bound(all(c), (x))) #define UNIQUE(x) sort(all(x)), x.erase(unique(all(x)), x.end()) int popcnt(int x) { return __builtin_popcount(x); } int popcnt(u32 x) { return __builtin_popcount(x); } int popcnt(ll x) { return __builtin_popcountll(x); } int popcnt(u64 x) { return __builtin_popcountll(x); } // (0, 1, 2, 3, 4) -> (-1, 0, 1, 1, 2) int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); } int topbit(u32 x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); } int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); } int topbit(u64 x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); } // (0, 1, 2, 3, 4) -> (-1, 0, 1, 0, 2) int lowbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); } int lowbit(u32 x) { return (x == 0 ? -1 : __builtin_ctz(x)); } int lowbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); } int lowbit(u64 x) { return (x == 0 ? -1 : __builtin_ctzll(x)); } template T ceil(T x, U y) { return (x > 0 ? (x + y - 1) / y : x / y); } template T floor(T x, U y) { return (x > 0 ? x / y : (x - y + 1) / y); } template pair divmod(T x, U y) { T q = floor(x, y); return {q, x - q * y}; } ll binary_search(function check, ll ok, ll ng) { assert(check(ok)); while (abs(ok - ng) > 1) { auto x = (ng + ok) / 2; if (check(x)) ok = x; else ng = x; } return ok; } template inline bool chmax(T &a, const S &b) { return (a < b ? a = b, 1 : 0); } template inline bool chmin(T &a, const S &b) { return (a > b ? a = b, 1 : 0); } vi s_to_vi(const string& S, char first_char) { vi A(S.size()); FOR(i, S.size()) { A[i] = S[i] - first_char; } return A; } template vector cumsum(vector &A, int off = 1) { int N = A.size(); vector B(N + 1); FOR(i, N) { B[i + 1] = B[i] + A[i]; } if (off == 0) B.erase(B.begin()); return B; } template vc bincount(const vc &A, int size) { vc C(size); for (auto &&x: A) { ++C[x]; } return C; } template vector argsort(const vector &A) { // stable vector ids(A.size()); iota(all(ids), 0); sort(all(ids), [&](int i, int j) { return A[i] < A[j] || (A[i] == A[j] && i < j); }); return ids; } // A[I[0]], A[I[1]], ... template vc rearrange(const vc &A, const vc &I) { int n = len(A); assert(len(I) == n); vc B(n); FOR(i, n) B[i] = A[I[i]]; return B; } #line 1 "/home/maspy/compro/library/other/io.hpp" // based on yosupo's fastio #include namespace detail { template std::true_type check_value(int); template std::false_type check_value(long); } // namespace detail template struct is_modint : decltype(detail::check_value(0)) {}; template using is_modint_t = enable_if_t::value>; template using is_not_modint_t = enable_if_t::value>; struct Scanner { FILE *fp; char line[(1 << 15) + 1]; size_t st = 0, ed = 0; void reread() { memmove(line, line + st, ed - st); ed -= st; st = 0; ed += fread(line + ed, 1, (1 << 15) - ed, fp); line[ed] = '\0'; } bool succ() { while (true) { if (st == ed) { reread(); if (st == ed) return false; } while (st != ed && isspace(line[st])) st++; if (st != ed) break; } if (ed - st <= 50) { bool sep = false; for (size_t i = st; i < ed; i++) { if (isspace(line[i])) { sep = true; break; } } if (!sep) reread(); } return true; } template ::value, int> = 0> bool read_single(T &ref) { if (!succ()) return false; while (true) { size_t sz = 0; while (st + sz < ed && !isspace(line[st + sz])) sz++; ref.append(line + st, sz); st += sz; if (!sz || st != ed) break; reread(); } return true; } template ::value, int> = 0> bool read_single(T &ref) { if (!succ()) return false; bool neg = false; if (line[st] == '-') { neg = true; st++; } ref = T(0); while (isdigit(line[st])) { ref = 10 * ref + (line[st++] & 0xf); } if (neg) ref = -ref; return true; } template * = nullptr> bool read_single(T &ref) { long long val = 0; bool f = read_single(val); ref = T(val); return f; } bool read_single(double &ref) { string s; if (!read_single(s)) return false; ref = std::stod(s); return true; } bool read_single(char &ref) { string s; if (!read_single(s) || s.size() != 1) return false; ref = s[0]; return true; } template bool read_single(vector &ref) { for (auto &d: ref) { if (!read_single(d)) return false; } return true; } template bool read_single(pair &p) { return (read_single(p.first) && read_single(p.second)); } template bool read_single(tuple &p) { return (read_single(get<0>(p)) && read_single(get<1>(p)) && read_single(get<2>(p))); } template bool read_single(tuple &p) { return (read_single(get<0>(p)) && read_single(get<1>(p)) && read_single(get<2>(p)) && read_single(get<3>(p))); } void read() {} template void read(H &h, T &... t) { bool f = read_single(h); assert(f); read(t...); } Scanner(FILE *fp) : fp(fp) {} }; struct Printer { Printer(FILE *_fp) : fp(_fp) {} ~Printer() { flush(); } static constexpr size_t SIZE = 1 << 15; FILE *fp; char line[SIZE], small[50]; size_t pos = 0; void flush() { fwrite(line, 1, pos, fp); pos = 0; } void write(const char &val) { if (pos == SIZE) flush(); line[pos++] = val; } template ::value, int> = 0> void write(T val) { if (pos > (1 << 15) - 50) flush(); if (val == 0) { write('0'); return; } if (val < 0) { write('-'); val = -val; // todo min } size_t len = 0; while (val) { small[len++] = char(0x30 | (val % 10)); val /= 10; } for (size_t i = 0; i < len; i++) { line[pos + i] = small[len - 1 - i]; } pos += len; } void write(const string &s) { for (char c: s) write(c); } void write(const char *s) { size_t len = strlen(s); for (size_t i = 0; i < len; i++) write(s[i]); } void write(const double &x) { ostringstream oss; oss << setprecision(15) << x; string s = oss.str(); write(s); } void write(const long double &x) { ostringstream oss; oss << setprecision(15) << x; string s = oss.str(); write(s); } template * = nullptr> void write(T &ref) { write(ref.val); } template void write(const vector &val) { auto n = val.size(); for (size_t i = 0; i < n; i++) { if (i) write(' '); write(val[i]); } } template void write(const pair &val) { write(val.first); write(' '); write(val.second); } template void write(const tuple &val) { auto &[a, b, c] = val; write(a), write(' '), write(b), write(' '), write(c); } template void write(const tuple &val) { auto &[a, b, c, d] = val; write(a), write(' '), write(b), write(' '), write(c), write(' '), write(d); } template void write(const tuple &val) { auto &[a, b, c, d, e] = val; write(a), write(' '), write(b), write(' '), write(c), write(' '), write(d), write(' '), write(e); } template void write(const tuple &val) { auto &[a, b, c, d, e, f] = val; write(a), write(' '), write(b), write(' '), write(c), write(' '), write(d), write(' '), write(e), write(' '), write(f); } template void write(const array &val) { auto n = val.size(); for (size_t i = 0; i < n; i++) { if (i) write(' '); write(val[i]); } } void write(i128 val) { string s; bool negative = 0; if(val < 0){ negative = 1; val = -val; } while (val) { s += '0' + int(val % 10); val /= 10; } if(negative) s += "-"; reverse(all(s)); if (len(s) == 0) s = "0"; write(s); } }; Scanner scanner = Scanner(stdin); Printer printer = Printer(stdout); void flush() { printer.flush(); } void print() { printer.write('\n'); } template void print(Head &&head, Tail &&... tail) { printer.write(head); if (sizeof...(Tail)) printer.write(' '); print(forward(tail)...); } void read() {} template void read(Head &head, Tail &... tail) { scanner.read(head); read(tail...); } #define INT(...) \ int __VA_ARGS__; \ read(__VA_ARGS__) #define LL(...) \ ll __VA_ARGS__; \ read(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ read(__VA_ARGS__) #define CHAR(...) \ char __VA_ARGS__; \ read(__VA_ARGS__) #define DBL(...) \ double __VA_ARGS__; \ read(__VA_ARGS__) #define VEC(type, name, size) \ vector name(size); \ read(name) #define VV(type, name, h, w) \ vector> name(h, vector(w)); \ read(name) void YES(bool t = 1) { print(t ? "YES" : "NO"); } void NO(bool t = 1) { YES(!t); } void Yes(bool t = 1) { print(t ? "Yes" : "No"); } void No(bool t = 1) { Yes(!t); } void yes(bool t = 1) { print(t ? "yes" : "no"); } void no(bool t = 1) { yes(!t); } #line 2 "/home/maspy/compro/library/alg/group_add.hpp" template struct Group_Add { using value_type = X; static constexpr X op(const X &x, const X &y) noexcept { return x + y; } static constexpr X inverse(const X &x) noexcept { return -x; } static constexpr X power(const X &x, ll n) noexcept { return n * x; } static constexpr X unit() { return X(0); } static constexpr bool commute = true; }; #line 3 "/home/maspy/compro/library/ds/fenwick.hpp" template struct FenwickTree { using E = typename AbelGroup::value_type; int n; vector dat; E total; FenwickTree() : FenwickTree(0) {} FenwickTree(int n) : n(n), total(AbelGroup::unit()) { assert(AbelGroup::commute); dat.assign(n, AbelGroup::unit()); } FenwickTree(vc v) : n(len(v)), total(AbelGroup::unit()) { assert(AbelGroup::commute); FOR(i, n) total = AbelGroup::op(total, v[i]); dat = v; FOR3(i, 1, n + 1) { int j = i + (i & -i); if (j <= n) dat[j - 1] = AbelGroup::op(dat[i - 1], dat[j - 1]); } } void reset(){ total = AbelGroup::unit(); dat.assign(n, AbelGroup::unit()); } E sum(int k) { E ret = AbelGroup::unit(); for (; k > 0; k -= k & -k) ret = AbelGroup::op(ret, dat[k - 1]); return ret; } E sum(int L, int R) { E pos = AbelGroup::unit(); while (L < R) { pos = AbelGroup::op(pos, dat[R - 1]); R -= R & -R; } E neg = AbelGroup::unit(); while (R < L) { neg = AbelGroup::op(neg, dat[L - 1]); L -= L & -L; } return AbelGroup::op(pos, AbelGroup::inverse(neg)); } E sum_all() { return total; } void add(int k, E x) { total = AbelGroup::op(total, x); for (++k; k <= n; k += k & -k) dat[k - 1] = AbelGroup::op(dat[k - 1], x); } template int max_right(F& check) { assert(check(E(0))); ll i = 0; E s = AbelGroup::unit(); int k = 1; int N = len(dat) + 1; while (2 * k < N) k *= 2; while (k) { if (i + k < N && check(AbelGroup::op(s, dat[i + k - 1]))) { i += k; s = AbelGroup::op(s, dat[i - 1]); } k >>= 1; } return i; } int find_kth(E k) { auto check = [&](E x) -> bool { return x <= k; }; return max_right(check); } void debug() { print("fenwick", dat); } }; #line 1 "/home/maspy/compro/library/ds/binarytrie.hpp" template struct BinaryTrie { struct Node { ll cnt = 0; int ch[2] = {-1, -1}; }; vector ns; BinaryTrie() : ns(1) {} ll size() const { return ns[0].cnt; } ll operator[](int k) const { return find_kth(k, 0); } ll find_kth(ll k, ll xor_add = 0) const { assert(0 <= k && k < size()); ll idx = 0; ll val = 0; FOR_R(i, LOG) { ll c = xor_add >> i & 1; ll low_ch = ns[idx].ch[c]; ll low_cnt = (low_ch >= 0 ? ns[low_ch].cnt : 0); if (k < low_cnt) { idx = low_ch; } else { k -= low_cnt; idx = ns[idx].ch[c ^ 1]; val ^= 1LL << i; } assert(idx >= 0); } return val; } void add(ll val, ll cnt = 1) { assert(0 <= val && val < (1LL << LOG)); int idx = 0; FOR_R(i, LOG) { ns[idx].cnt += cnt; assert(ns[idx].cnt >= 0); int &nxt = ns[idx].ch[val >> i & 1]; if (nxt == -1) { idx = nxt = ns.size(); ns.emplace_back(); } else { idx = nxt; } } ns[idx].cnt += cnt; assert(ns[idx].cnt >= 0); return; } ll lower_bound(ll val, ll xor_add = 0) { assert(0 <= val); if (val >= (1LL << LOG)) return size(); int idx = 0; ll cnt = 0; FOR_R(i, LOG) { int b = val >> i & 1, c = xor_add >> i & 1; int ch = ns[idx].ch[c]; cnt += (b & (ch >= 0) ? ns[ch].cnt : 0); idx = ns[idx].ch[b ^ c]; if (idx < 0 or ns[idx].cnt == 0) break; } return cnt; } ll count(ll val) const { assert(0 <= val && val < (1LL << LOG)); int idx = 0; FOR_R(i, LOG) { idx = ns[idx].ch[val >> i & 1]; if (idx < 0 or ns[idx].cnt == 0) return 0; } return ns[idx].cnt; } ll count(ll L, ll R, ll xor_add = 0) { assert(0 <= L && L <= R && R <= (1LL << LOG)); return lower_bound(R, xor_add) - lower_bound(L, xor_add); } ll min(ll xor_add = 0) { return find_kth(0, xor_add); } ll max(ll xor_add = 0) { return find_kth(size() - 1, xor_add); } void debug() { FOR(i, len(ns)) print(i, "cnt", ns[i].cnt, "ch", ns[i].ch[0], ns[i].ch[1]); } }; #line 5 "main.cpp" void solve() { LL(N, Q); VEC(ll, A, N); FenwickTree> bit(A); BinaryTrie<40> BT; for (auto&& a: A) BT.add(a); ll b_sz = 1; while (b_sz * b_sz <= 10 * N) ++b_sz; ll b_num = ceil(N, b_sz); while (N < b_sz * b_num) { ++N; A.eb(0); } /* バケットごとに ・ソート列 ・累積和 を持つ */ vv(ll, B, b_num, b_sz); vv(ll, Bc, b_num, b_sz + 1); auto build = [&](ll b) -> void { ll L = b * b_sz; ll R = L + b_sz; B[b] = {A.begin() + L, A.begin() + R}; sort(all(B[b])); Bc[b] = cumsum(B[b]); }; auto calc = [&](ll L, ll R, ll x) -> pi { // x 以下の要素について、個数と和を求める ll l0 = -b_sz, r0 = 0; ll cnt = 0, sum = 0; FOR(b, b_num) { l0 += b_sz, r0 += b_sz; ll l = max(L, l0); ll r = min(R, r0); if (l >= r) continue; if (r - l == b_sz) { ll k = UB(B[b], x); cnt += k; sum += Bc[b][k]; } else { FOR3(i, l, r) { if (A[i] <= x) { ++cnt; sum += A[i]; } } } } return {cnt, sum}; }; FOR(b, b_num) build(b); ll s = 0; ll MASK16 = (1LL << 16) - 1; ll MASK40 = (1LL << 40) - 1; const ll INF = 1LL << 60; FOR_(Q) { LL(t); if (t == 1) { LL(X, Y); X = X ^ (s & MASK16); Y = Y ^ (s & MASK40); assert(1 <= X && X <= N); assert(0 <= Y && Y <= MASK40); --X; bit.add(X, Y - A[X]); A[X] = Y; BT.add(Y); build(X / b_sz); } if (t == 2) { LL(L, R); L = L ^ (s & MASK16); R = R ^ (s & MASK16); if (L > R) swap(L, R); assert(1 <= L && L <= R && R <= N); --L; ll ANS = INF; ll full = bit.sum(L, R); ll n = (R - L); auto check = [&](ll k) -> bool { ll x = BT.find_kth(k); // x 以下の要素が (n+1)/2 個以上あれば ok auto [cnt, sum] = calc(L, R, x); ll sum_lo = x * cnt - sum; ll sum_hi = (full - sum) - x * (n - cnt); chmin(ANS, sum_lo + sum_hi); return cnt >= (n + 1) / 2; }; binary_search(check, BT.size() - 1, -1); print(ANS); s ^= ANS; } } } signed main() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << setprecision(15); ll T = 1; // LL(T); FOR(_, T) solve(); return 0; }