結果
問題 | No.1568 Sushi |
ユーザー | KoD |
提出日時 | 2021-04-17 13:07:07 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 5,113 bytes |
コンパイル時間 | 3,272 ms |
コンパイル使用メモリ | 212,000 KB |
実行使用メモリ | 116,480 KB |
最終ジャッジ日時 | 2024-06-25 09:54:25 |
合計ジャッジ時間 | 13,206 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
ソースコード
#include <bits/stdc++.h> using i32 = std::int32_t; using u32 = std::uint32_t; using i64 = std::int64_t; using u64 = std::uint64_t; using i128 = __int128_t; using u128 = __uint128_t; using isize = std::ptrdiff_t; using usize = std::size_t; class rep { struct Iter { usize itr; constexpr Iter(const usize pos) noexcept : itr(pos) {} constexpr void operator++() noexcept { ++itr; } constexpr bool operator!=(const Iter& other) const noexcept { return itr != other.itr; } constexpr usize operator*() const noexcept { return itr; } }; const Iter first, last; public: explicit constexpr rep(const usize first, const usize last) noexcept : first(first), last(std::max(first, last)) {} constexpr Iter begin() const noexcept { return first; } constexpr Iter end() const noexcept { return last; } }; constexpr u64 bit_lzeros(const u64 x) { return x == 0 ? 64 : __builtin_clzll(x); } constexpr u64 bit_width(const u64 x) { return 64 - bit_lzeros(x); } template <class IdempotentMonoid> class SparseTable { using M = IdempotentMonoid; std::vector<std::vector<M>> table; public: SparseTable() : SparseTable(std::vector<M>()) {} explicit SparseTable(const std::vector<M>& vec) { const auto size = vec.size(); const auto height = bit_width(size); table.reserve(height); table.push_back(vec); for (const usize d : rep(1, height)) { table.push_back(std::vector<M>(size - (1 << d) + 1, M::zero())); for (const usize i : rep(0, table[d].size())) { table[d][i] = table[d - 1][i] + table[d - 1][i + (1 << (d - 1))]; } } } usize size() const { return table[0].size(); } M fold(const usize l, const usize r) const { if (l == r) return M::zero(); assert(l < r); const auto d = bit_width(r - l) - 1; return table[d][l] + table[d][r - (1 << d)]; } }; template <class T, T Div = 2> constexpr T INFTY = std::numeric_limits<T>::max() / Div; template <class T> bool setmin(T& lhs, const T& rhs) { if (lhs > rhs) { lhs = rhs; return true; } return false; } constexpr i64 MAX_T = 1000000000000000; struct Monoid { static Monoid zero() { return Monoid{-INFTY<i64>, INFTY<i64>, 0, 0}; } i64 max, min, difmax, difmin; Monoid operator+(const Monoid& other) const { return Monoid{std::max(max, other.max), std::min(min, other.min), std::max({difmax, other.difmax, other.max - min}), std::min({difmin, other.difmin, other.min - max})}; } }; template <class T> using Vec = std::vector<T>; int main() { std::ios_base::sync_with_stdio(false); std::cin.tie(nullptr); i64 L; usize N, Q; std::cin >> L >> N >> Q; Vec<i64> A(N + 2); for (const auto i : rep(0, N)) { std::cin >> A[i + 1]; } A[0] = 0; A[N + 1] = 2 * MAX_T + 5; Vec<i64> X(N + 2); for (const auto i : rep(0, N + 1)) { X[i + 1] = X[i] + (A[i + 1] - A[i]) * (i % 2 == 0 ? 1 : -1); } SparseTable<Monoid> table; { Vec<Monoid> vec(N + 2, Monoid::zero()); for (const auto i : rep(0, N + 2)) { vec[i].max = vec[i].min = X[i]; } table = SparseTable(vec); } i64 LAST = 0; while (Q--) { i64 B, C; std::cin >> B >> C; const i64 x = (B + LAST) % L; const i64 t = (C + LAST) % MAX_T; const usize first = std::upper_bound(A.begin(), A.end(), t) - A.begin(); assert(first > 0); i64 ans = INFTY<i64>; if (x == 0) { ans = 0; } else { const auto rotL = x; const auto rotR = L - x; const auto start = X[first - 1] + (t - A[first - 1]) * ((first - 1) % 2 == 0 ? 1 : -1); usize ok = N + 2, ng = first; while (ok - ng > 1) { const auto md = (ok + ng) / 2; const auto m = table.fold(first, md); if (m.max - start >= rotL or m.min - start <= -rotR or m.difmax >= rotL or m.difmin <= -rotR) { ok = md; } else { ng = md; } } const auto m = table.fold(first, ok); if ((ok - 2) % 2 == 0) { if (m.max - start >= rotL) { setmin(ans, (A[ok - 1] - t) - ((m.max - start) - rotL)); } if (m.difmax >= rotL) { setmin(ans, (A[ok - 1] - t) - ((m.difmax - rotL))); } } else { if (m.min - start <= -rotR) { setmin(ans, (A[ok - 1] - t) - ((-rotR) - (m.min - start))); } if (m.difmin <= -rotR) { setmin(ans, (A[ok - 1] - t) - ((-rotR) - m.difmin)); } } } std::cout << ans << '\n'; LAST = ans; } }