結果
問題 | No.867 避難経路 |
ユーザー | noshi91 |
提出日時 | 2023-02-28 17:52:38 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 3,475 ms / 6,000 ms |
コード長 | 5,805 bytes |
コンパイル時間 | 2,708 ms |
コンパイル使用メモリ | 223,104 KB |
実行使用メモリ | 25,728 KB |
最終ジャッジ日時 | 2024-09-15 20:31:48 |
合計ジャッジ時間 | 88,738 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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 | 3 ms
5,248 KB |
testcase_01 | AC | 4 ms
5,376 KB |
testcase_02 | AC | 4 ms
5,376 KB |
testcase_03 | AC | 4 ms
5,376 KB |
testcase_04 | AC | 4 ms
5,376 KB |
testcase_05 | AC | 4 ms
5,376 KB |
testcase_06 | AC | 4 ms
5,376 KB |
testcase_07 | AC | 4 ms
5,376 KB |
testcase_08 | AC | 4 ms
5,376 KB |
testcase_09 | AC | 4 ms
5,376 KB |
testcase_10 | AC | 4 ms
5,376 KB |
testcase_11 | AC | 4 ms
5,376 KB |
testcase_12 | AC | 3 ms
5,376 KB |
testcase_13 | AC | 4 ms
5,376 KB |
testcase_14 | AC | 4 ms
5,376 KB |
testcase_15 | AC | 3,368 ms
25,728 KB |
testcase_16 | AC | 3,141 ms
25,728 KB |
testcase_17 | AC | 3,475 ms
25,600 KB |
testcase_18 | AC | 3,218 ms
25,728 KB |
testcase_19 | AC | 3,167 ms
25,728 KB |
testcase_20 | AC | 3,152 ms
24,120 KB |
testcase_21 | AC | 3,062 ms
24,380 KB |
testcase_22 | AC | 3,213 ms
22,232 KB |
testcase_23 | AC | 3,443 ms
22,364 KB |
testcase_24 | AC | 3,116 ms
22,440 KB |
testcase_25 | AC | 3,233 ms
20,356 KB |
testcase_26 | AC | 3,257 ms
20,360 KB |
testcase_27 | AC | 3,318 ms
20,492 KB |
testcase_28 | AC | 2,579 ms
20,496 KB |
testcase_29 | AC | 2,636 ms
20,340 KB |
testcase_30 | AC | 2,434 ms
20,184 KB |
testcase_31 | AC | 2,394 ms
22,112 KB |
testcase_32 | AC | 2,425 ms
22,016 KB |
testcase_33 | AC | 2,403 ms
21,948 KB |
testcase_34 | AC | 2,466 ms
20,308 KB |
testcase_35 | AC | 2,547 ms
20,184 KB |
testcase_36 | AC | 2,591 ms
20,180 KB |
testcase_37 | AC | 2,431 ms
20,148 KB |
testcase_38 | AC | 2,397 ms
20,280 KB |
testcase_39 | AC | 2,375 ms
20,276 KB |
testcase_40 | AC | 2,399 ms
20,280 KB |
testcase_41 | AC | 2 ms
5,376 KB |
testcase_42 | AC | 2 ms
5,376 KB |
testcase_43 | AC | 3 ms
5,376 KB |
ソースコード
//#define NDEBUG #include <cstddef> #include <cstdint> #include <iostream> #include <bits/stdc++.h> namespace n91 { using i8 = std::int_fast8_t; using i32 = std::int_fast32_t; using i64 = std::int_fast64_t; using u8 = std::uint_fast8_t; using u32 = std::uint_fast32_t; using u64 = std::uint_fast64_t; using isize = std::ptrdiff_t; using usize = std::size_t; constexpr usize operator"" _z(unsigned long long x) noexcept { return static_cast<usize>(x); } class rep { const usize f, l; public: class itr { friend rep; usize i; constexpr itr(const usize x) noexcept : i(x) {} public: void operator++() noexcept { ++i; } constexpr usize operator*() const noexcept { return i; } constexpr bool operator!=(const itr x) const noexcept { return i != x.i; } }; constexpr rep(const usize first, const usize last) noexcept : f(first), l(last) {} constexpr itr begin() const noexcept { return itr(f); } constexpr itr end() const noexcept { return itr(l); } }; class revrep { const usize f, l; public: class itr { friend revrep; usize i; constexpr itr(usize x) noexcept : i(x) {} public: void operator++() noexcept { --i; } constexpr usize operator*() const noexcept { return i; } constexpr bool operator!=(const itr x) const noexcept { return i != x.i; } }; constexpr revrep(usize first, usize last) noexcept : f(--first), l(--last) {} constexpr itr begin() const noexcept { return itr(l); } constexpr itr end() const noexcept { return itr(f); } }; template <class T> using vec_alias = std::vector<T>; template <class T> auto md_vec(const usize n, const T &value) { return std::vector<T>(n, value); } template <class... Args> auto md_vec(const usize n, Args... args) { return std::vector<decltype(md_vec(args...))>(n, md_vec(args...)); } template <class T> constexpr T difference(const T &a, const T &b) { return a < b ? b - a : a - b; } template <class T> T scan() { T ret; std::cin >> ret; return ret; } } // namespace n91 #include <algorithm> #include <array> #include <iostream> #include <queue> #include <utility> namespace n91 { void main_() { static constexpr u64 MaxK = static_cast<u64>(300); const auto h = scan<usize>(); const auto w = scan<usize>(); const usize gx = scan<usize>() - 1_z; const usize gy = scan<usize>() - 1_z; auto a = md_vec(h, w, static_cast<u64>(0)); for (auto &v : a) { for (auto &e : v) { e = scan<u64>(); } } const usize q = scan<usize>(); struct query_type { usize x, y; u64 k; u64 ans; }; std::vector<query_type> query(q); for (auto &e : query) { e.x = scan<usize>() - 1_z; e.y = scan<usize>() - 1_z; e.k = scan<u64>(); } std::array<std::vector<usize>, static_cast<usize>(MaxK)> small; for (const auto i : rep(0_z, q)) { if (query[i].k < MaxK) { small[query[i].k].push_back(i); } } { auto d = md_vec(h, w, std::numeric_limits<u64>::max()); struct node_type { usize x, y; u64 c; constexpr node_type(const usize x, const usize y, const u64 c) : x(x), y(y), c(c) {} constexpr bool operator<(const node_type &rhs) const noexcept { return rhs.c < c; } }; std::priority_queue<node_type> que; for (const auto k : rep(1_z, static_cast<usize>(MaxK))) { for (auto &v : d) { std::fill(v.begin(), v.end(), std::numeric_limits<u64>::max()); } const u64 kk = static_cast<u64>(k * k); std::array<usize, 4_z> dx{-1_z, 0_z, 0_z, 1_z}, dy{0_z, -1_z, 1_z, 0_z}; que.emplace(gx, gy, static_cast<u64>(0)); d[gx][gy] = static_cast<u64>(0); while (!que.empty()) { const usize x = que.top().x; const usize y = que.top().y; const u64 c = que.top().c; que.pop(); if (d[x][y] < c) { continue; } const u64 nc = c + a[x][y] + kk; for (const auto i : rep(0_z, 4_z)) { const usize nx = x + dx[i]; const usize ny = y + dy[i]; if (nx < h && ny < w && d[nx][ny] > nc) { d[nx][ny] = nc; que.emplace(nx, ny, nc); } } } for (const auto i : small[k]) { auto &e = query[i]; e.ans = d[e.x][e.y] + a[e.x][e.y] + kk; } } } { using p = std::pair<usize, u64>; auto d = md_vec( h, w, p(std::numeric_limits<usize>::max(), std::numeric_limits<u64>::max())); std::array<usize, 4_z> dx{-1_z, 0_z, 0_z, 1_z}, dy{0_z, -1_z, 1_z, 0_z}; struct node_type { usize x, y; p c; constexpr node_type(const usize x, const usize y, const p c) : x(x), y(y), c(c) {} constexpr bool operator<(const node_type &rhs) const noexcept { return rhs.c < c; } }; std::priority_queue<node_type> que; que.emplace(gx, gy, p(0_z, static_cast<u64>(0))); d[gx][gy] = {0_z, static_cast<u64>(0)}; while (!que.empty()) { const usize x = que.top().x; const usize y = que.top().y; const p c = que.top().c; que.pop(); if (d[x][y] < c) { continue; } const p nc = p(c.first + 1_z, c.second + a[x][y]); for (const auto i : rep(0_z, 4_z)) { const usize nx = x + dx[i]; const usize ny = y + dy[i]; if (nx < h && ny < w && d[nx][ny] > nc) { d[nx][ny] = nc; que.emplace(nx, ny, nc); } } } for (auto &e : query) { if (e.k >= MaxK) { const usize len = d[e.x][e.y].first + 1_z; const u64 dist = d[e.x][e.y].second + a[e.x][e.y]; e.ans = dist + e.k * e.k * len; } } } for (const auto &e : query) { std::cout << e.ans << std::endl; } } } // namespace n91 int main() { n91::main_(); return 0; }