結果
問題 | No.880 Yet Another Segment Tree Problem |
ユーザー | hitonanode |
提出日時 | 2021-02-01 21:18:54 |
言語 | C++11 (gcc 11.4.0) |
結果 |
TLE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 8,665 bytes |
コンパイル時間 | 1,026 ms |
コンパイル使用メモリ | 78,416 KB |
実行使用メモリ | 20,736 KB |
最終ジャッジ日時 | 2024-09-22 19:52:10 |
合計ジャッジ時間 | 18,880 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
20,736 KB |
testcase_01 | AC | 3 ms
5,376 KB |
testcase_02 | AC | 4 ms
5,376 KB |
testcase_03 | AC | 4 ms
5,376 KB |
testcase_04 | AC | 3 ms
5,376 KB |
testcase_05 | AC | 3 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 3 ms
5,376 KB |
testcase_08 | AC | 4 ms
5,376 KB |
testcase_09 | AC | 4 ms
5,376 KB |
testcase_10 | AC | 3 ms
5,376 KB |
testcase_11 | AC | 643 ms
14,720 KB |
testcase_12 | AC | 622 ms
14,976 KB |
testcase_13 | AC | 445 ms
14,592 KB |
testcase_14 | AC | 623 ms
15,360 KB |
testcase_15 | AC | 663 ms
15,488 KB |
testcase_16 | AC | 699 ms
15,488 KB |
testcase_17 | AC | 729 ms
15,440 KB |
testcase_18 | AC | 735 ms
15,488 KB |
testcase_19 | AC | 294 ms
15,360 KB |
testcase_20 | AC | 301 ms
15,616 KB |
testcase_21 | AC | 307 ms
15,360 KB |
testcase_22 | AC | 296 ms
15,488 KB |
testcase_23 | AC | 307 ms
15,360 KB |
testcase_24 | AC | 276 ms
15,360 KB |
testcase_25 | AC | 285 ms
15,616 KB |
testcase_26 | AC | 287 ms
15,360 KB |
testcase_27 | AC | 282 ms
15,360 KB |
testcase_28 | AC | 290 ms
15,360 KB |
testcase_29 | AC | 614 ms
15,360 KB |
testcase_30 | AC | 639 ms
15,360 KB |
testcase_31 | AC | 697 ms
15,488 KB |
testcase_32 | TLE | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
ソースコード
#ifndef ATCODER_LAZYSEGTREE_HPP #define ATCODER_LAZYSEGTREE_HPP 1 #include <algorithm> #include <cassert> #include <iostream> #include <vector> // #include "atcoder/internal_bit" #ifndef ATCODER_INTERNAL_BITOP_HPP #define ATCODER_INTERNAL_BITOP_HPP 1 #ifdef _MSC_VER #include <intrin.h> #endif namespace atcoder { namespace internal { // @param n `0 <= n` // @return minimum non-negative `x` s.t. `n <= 2**x` int ceil_pow2(int n) { int x = 0; while ((1U << x) < (unsigned int)(n)) x++; return x; } // @param n `1 <= n` // @return minimum non-negative `x` s.t. `(n & (1 << x)) != 0` int bsf(unsigned int n) { #ifdef _MSC_VER unsigned long index; _BitScanForward(&index, n); return index; #else return __builtin_ctz(n); #endif } } // namespace internal } // namespace atcoder #endif // ATCODER_INTERNAL_BITOP_HPP namespace atcoder { template <class S, S (*op)(S, S), S (*e)(), class F, S (*mapping)(F, S), F (*composition)(F, F), F (*id)()> struct lazy_segtree { 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())) { log = internal::ceil_pow2(_n); size = 1 << log; 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]; 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); 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 >> 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); d[p] = mapping(f, d[p]); for (int i = 1; i <= log; i++) update(p >> i); } std::vector<int> is; 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; is.clear(); while (l < r) { if (l & 1) is.push_back(l++); if (r & 1) is.push_back(--r); l >>= 1; r >>= 1; } std::reverse(is.begin(), is.end()); for (auto i : is) all_apply(i, f); 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; } private: int _n, size, log; std::vector<S> d; std::vector<F> lz; void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); } void all_apply(int k, F f) { d[k] = mapping(f, d[k]); if (k < size) { lz[k] = composition(f, lz[k]); if (d[k].fail) push(k), update(k); // MODIFIED!!! } } void push(int k) { all_apply(2 * k, lz[k]); all_apply(2 * k + 1, lz[k]); lz[k] = id(); } }; } // namespace atcoder #endif // ATCODER_LAZYSEGTREE_HPP /////////////////////////////////////////////////////// ACL ここまで /////////////////////////////////////////////////////// namespace RangeUpdateChgcdRangeMaxSum { constexpr uint32_t BINF = 1 << 30; struct S { uint32_t max; // 区間最大値 uint32_t lcm; // min(BINF, (区間内全要素の最大公約数)) uint32_t sz; // 区間要素数 uint64_t sum; // 区間内全要素の総和 bool fail; S() : max(0), lcm(1), sz(0), sum(0), fail(0) {} S(uint32_t x, uint32_t sz_ = 1) : max(x), lcm(x), sz(sz_), sum((uint64_t)x * sz_), fail(0) {} }; S e() { return S(); } S op(S l, S r) { if (r.sz == 0) return l; if (l.sz == 0) return r; S ret; ret.max = std::max(l.max, r.max); ret.sum = l.sum + r.sum; ret.lcm = std::min(uint64_t(BINF), (uint64_t)l.lcm * r.lcm / std::__gcd(l.lcm, r.lcm)); ret.sz = l.sz + r.sz; return ret; } struct F { uint32_t dogcd, reset; F() : dogcd(0), reset(0) {} F(uint32_t g, uint32_t upd) : dogcd(g), reset(upd) {} static F gcd(uint32_t g) noexcept { return F(g, 0); } static F update(uint32_t a) noexcept { return F(0, a); } }; F composition(F fnew, F fold) { if (fnew.reset) return F::update(fnew.reset); else if (fold.reset) { return F::update(std::__gcd(fnew.dogcd, fold.reset)); } else { return F::gcd(std::__gcd(fnew.dogcd, fold.dogcd)); } } F id() { return F(); } S mapping(F f, S x) { if (x.fail) return x; if (f.reset) x = S(f.reset, x.sz); if (f.dogcd) { if (x.sz == 1) { x = S(std::__gcd(x.max, f.dogcd)); } else if (x.lcm == BINF or f.dogcd % x.lcm) { // 区間 gcd クエリによって,複数個の要素からなる区間でいずれかの値が変更を受ける場合のみ計算失敗 x.fail = true; } } return x; } using segtree = atcoder::lazy_segtree<S, op, e, F, mapping, composition, id>; } // namespace RangeUpdateChgcdRangeMaxSum #include <iostream> using namespace std; int main() { cin.tie(nullptr), ios::sync_with_stdio(false); uint32_t N, Q; cin >> N >> Q; vector<RangeUpdateChgcdRangeMaxSum::S> A(N); for (auto &a : A) { uint32_t tmp; cin >> tmp, a = {tmp, 1}; } RangeUpdateChgcdRangeMaxSum::segtree segtree(A); uint32_t q, l, r, x; while (Q--) { cin >> q >> l >> r; l--; if (q <= 2) { cin >> x; if (q == 1) segtree.apply(l, r, RangeUpdateChgcdRangeMaxSum::F::update(x)); if (q == 2) segtree.apply(l, r, RangeUpdateChgcdRangeMaxSum::F::gcd(x)); } else { auto v = segtree.prod(l, r); if (q == 3) cout << v.max << '\n'; if (q == 4) cout << v.sum << '\n'; } } }