#1179480 (C++23) No.3671 Reusable Lazy Segment Tree

• 問題: No.3671 Reusable Lazy Segment Tree
• ユーザー: TKTYI
• 提出日時: 2026-08-27 16:18:45
• 言語: C++23 (gcc 15.3.0 + boost 1.92.0 + ACL)
• 結果: AC
• 実行時間: 5,939 ms / 6,000 ms
• コード長: 8,083 bytes
• コンパイル時間: 2,673 ms
• コンパイル使用メモリ: 361,496 KB
• 実行使用メモリ: 78,096 KB
• 最終ジャッジ日時: 2026-09-04 23:01:38
• 合計ジャッジ時間: 35,604 ms
• ジャッジサーバーID （参考情報）: judge3_0 / judge1_0

ファイルパターン	結果
sample	AC * 1
other	AC * 19

ソースコード

#include <bits/stdc++.h>
using namespace std;

template <class S,
          auto op,
          auto e,
          class F,
          auto mapping,
          auto composition,
          auto id>
struct lazy_segtree {
    static_assert(std::is_convertible_v<decltype(op), std::function<S(S, S)>>,
                  "op must work as S(S, S)");
    static_assert(std::is_convertible_v<decltype(e), std::function<S()>>,
                  "e must work as S()");
    static_assert(
        std::is_convertible_v<decltype(mapping), std::function<S(F, S)>>,
        "mapping must work as F(F, S)");
    static_assert(
        std::is_convertible_v<decltype(composition), std::function<F(F, F)>>,
        "compostiion must work as F(F, F)");
    static_assert(std::is_convertible_v<decltype(id), std::function<F()>>,
                  "id must work as F()");

  public:
    lazy_segtree() : lazy_segtree(0) {}
    explicit lazy_segtree(int n) : lazy_segtree(std::vector<S>(n, e())) {}
    explicit lazy_segtree(const std::vector<S>& v) : _n(int(v.size())) {
        size = bit_ceil((unsigned int)(_n));
        log = countr_zero((unsigned int)size);
        d = std::vector<S>(2 * size, e());
        lz = std::vector<F>(size, id());
        for (int i = 0; i < _n; i++) d[size + i] = v[i];
        dL.assign(2 * size, 0);
        lzL.assign(size, 0);
        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);
        save_d(p);
        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 - 1) >> 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);
        save_d(p);
        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 <bool (*g)(S)> int max_right(int l) {
        return max_right(l, [](S x) { return g(x); });
    }
    template <class G> 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 <bool (*g)(S)> int min_left(int r) {
        return min_left(r, [](S x) { return g(x); });
    }
    template <class G> 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;
    }

    void save() {
        for (auto[i, v] : dH) dL[i] = 0;
        for (auto[i, v] : lzH) lzL[i] = 0;
        dH.clear();
        lzH.clear();
    }
    void roll_back() {
        for (auto[i, v] : dH) d[i] = v, dL[i] = 0;
        for (auto[i, v] : lzH) lz[i] = v, lzL[i] = 0;
        dH.clear();
        lzH.clear();
    }

  private:
    int _n, size, log;
    std::vector<S> d;
    std::vector<F> lz;
    
    vector<pair<int,S>> dH;
    vector<pair<int,F>> lzH;
    vector<short> dL, lzL;

    void save_d(int k) {
        if (!dL[k]) {
            dL[k] = 1;
            dH.emplace_back(k, d[k]);
        }
    }
    void save_lz(int k) {
        if (!lzL[k]) {
            lzL[k] = 1;
            lzH.emplace_back(k, lz[k]);
        }
    }
    void update(int k) {
        save_d(k);
        d[k] = op(d[2 * k], d[2 * k + 1]);
    }
    void all_apply(int k, F f) {
        save_d(k);
        d[k] = mapping(f, d[k]);
        if (k < size) {
            save_lz(k);
            lz[k] = composition(f, lz[k]);
        }
    }
    void push(int k) {
        all_apply(2 * k, lz[k]);
        all_apply(2 * k + 1, lz[k]);
        save_lz(k);
        lz[k] = id();
    }
};

struct S {
  int cnt[32] = {0};
  int l = 0;
};
S op(const S& x, const S& y) {
  S res;
  res.l = x.l + y.l;
  for (int k = 0; k < 32; k++) res.cnt[k] = x.cnt[k] + y.cnt[k];
  return res;
}
S e() {
  return S();
}
using ull = unsigned long long;
S mpp(ull f,const S& x) {
  S res = x;
  for (int k = 0; k < 32; k++) {
    if ((f >> k) & 1) res.cnt[k] = 0;
    else if ((f >> (k + 30)) & 1) res.cnt[k] = x.l;
  }
  return res;
}
ull cmpo(ull f, ull g) {
  ull e = 0x3FFFFFFF ^ (f >> 30) ^ (f & 0x3FFFFFFF);
  return (f & 0x3FFFFFFF) | (g & 0x3FFFFFFF & e) | (((f >> 30) | ((g >> 30) & e)) << 30);
}
ull id() {
  return 0;
}
int main(){
  int N, M;
  cin >> N >> M;
  vector<int> A(N), l(M), r(M), x(M), L(M), R(M);
  for (auto&v : A) cin >> v;
  for (auto&v : l) cin >> v;
  for (auto&v : r) cin >> v;
  for (auto&v : x) cin >> v;
  for (auto&v : L) cin >> v;
  for (auto&v : R) cin >> v;
  int Q;
  cin >> Q;
  lazy_segtree<S, op, e, ull, mpp, cmpo, id> seg(N);
  for (int i = 0; i < N; i++) {
    S r;
    r.l = 1;
    for (int j = 0; j < 30; j++) r.cnt[j] = (A[i] >> j) & 1;
    seg.set(i, r);
  }
  seg.save();
  for (int i = 1; i <= Q; i++) {
    int s, q;
    cin >> s >> q;
    int y = i;
    for (int j = 1; j <= q; j++) {
      int z = (s + j) % M;
      int u = min(N, max(1, l[z] ^ y));
      int v = min(N, max(1, r[z] ^ y));
      int U = min(N, max(1, L[z] ^ y));
      int V = min(N, max(1, R[z] ^ y));
  	  if(u>v)swap(u,v);
  	  if(U>V)swap(U,V);
  	  u--; U--;
      ull w = x[z] ^ y;
  	  if (z & 1) seg.apply(u, v, w << 30);
  	  else seg.apply(u, v, 0x3FFFFFFF ^ w);
  	  auto pr = seg.prod(U, V);
  	  y = 0;
      for (int k = 0; k < 30; k++) {
        y += (ull(pr.cnt[k]) << k) & 0x3FFFFFFF;
  	    y &= 0x3FFFFFFF;
      }
  	}
  	cout << y << '\n';
  	seg.roll_back();
  }
  return 0;
}