結果
問題 | No.1315 渦巻洞穴 |
ユーザー | Pachicobue |
提出日時 | 2020-12-12 00:49:33 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,175 bytes |
コンパイル時間 | 2,144 ms |
コンパイル使用メモリ | 205,704 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-19 21:38:46 |
合計ジャッジ時間 | 5,291 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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テストケース
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ソースコード
#include <bits/stdc++.h> using ll = long long; using uint = unsigned int; using ull = unsigned long long; using ld = long double; template<typename T> using max_heap = std::priority_queue<T>; template<typename T> using min_heap = std::priority_queue<T, std::vector<T>, std::greater<T>>; constexpr int popcount(const ull v) { return v ? __builtin_popcountll(v) : 0; } constexpr int log2p1(const ull v) { return v ? 64 - __builtin_clzll(v) : 0; } constexpr int lsbp1(const ull v) { return __builtin_ffsll(v); } constexpr int clog(const ull v) { return v ? log2p1(v - 1) : 0; } constexpr ull ceil2(const ull v) { return 1ULL << clog(v); } constexpr ull floor2(const ull v) { return v ? (1ULL << (log2p1(v) - 1)) : 0ULL; } constexpr bool btest(const ull mask, const int ind) { return (mask >> ind) & 1ULL; } template<typename T> void bset(T& mask, const int ind) { mask |= ((T)1 << ind); } template<typename T> void breset(T& mask, const int ind) { mask &= ~((T)1 << ind); } template<typename T> void bflip(T& mask, const int ind) { mask ^= ((T)1 << ind); } template<typename T> void bset(T& mask, const int ind, const bool b) { (b ? bset(mask, ind) : breset(mask, ind)); } template<typename T> bool chmin(T& a, const T& b) { return (a > b ? a = b, true : false); } template<typename T> bool chmax(T& a, const T& b) { return (a < b ? a = b, true : false); } template<typename T> constexpr T inf_v = std::numeric_limits<T>::max() / 4; template<typename Real> constexpr Real pi_v = Real{3.141592653589793238462643383279502884}; template<typename T> constexpr T TEN(const int n) { return n == 0 ? T{1} : TEN<T>(n - 1) * T{10}; } template<typename F> struct fix : F { fix(F&& f) : F{std::forward<F>(f)} {} template<typename... Args> auto operator()(Args&&... args) const { return F::operator()(*this, std::forward<Args>(args)...); } }; template<typename T, int n, int i = 0> auto nd_array(int const (&szs)[n], const T x = T{}) { if constexpr (i == n) { return x; } else { return std::vector(szs[i], nd_array<T, n, i + 1>(szs, x)); } } class printer { public: printer(std::ostream& os_ = std::cout) : m_os{os_} { m_os << std::fixed << std::setprecision(15); } template<typename... Args> int ln(const Args&... args) { return dump(args...), m_os << '\n', 0; } template<typename... Args> int el(const Args&... args) { return dump(args...), m_os << std::endl, 0; } private: template<typename T> void dump(const T& v) { m_os << v; } template<typename T> void dump(const std::vector<T>& vs) { for (int i = 0; i < (int)vs.size(); i++) { m_os << (i ? " " : ""), dump(vs[i]); } } template<typename T> void dump(const std::vector<std::vector<T>>& vss) { for (int i = 0; i < (int)vss.size(); i++) { m_os << (0 <= i or i + 1 < (int)vss.size() ? "\n" : ""), dump(vss[i]); } } template<typename T, typename... Args> int dump(const T& v, const Args&... args) { return dump(v), m_os << ' ', dump(args...), 0; } std::ostream& m_os; }; printer out; class scanner { public: scanner(std::istream& is_ = std::cin) : m_is{is_} { m_is.tie(nullptr), std::ios::sync_with_stdio(false); } template<typename T> T val() { T v; return m_is >> v, v; } template<typename T> T val(const T offset) { return val<T>() - offset; } template<typename T> std::vector<T> vec(const int n) { return make_v<T>(n, [this]() { return val<T>(); }); } template<typename T> std::vector<T> vec(const int n, const T offset) { return make_v<T>(n, [this, offset]() { return val<T>(offset); }); } template<typename T> std::vector<std::vector<T>> vvec(const int n0, const int n1) { return make_v<std::vector<T>>(n0, [this, n1]() { return vec<T>(n1); }); } template<typename T> std::vector<std::vector<T>> vvec(const int n0, const int n1, const T offset) { return make_v<std::vector<T>>(n0, [this, n1, offset]() { return vec<T>(n1, offset); }); } template<typename... Args> auto tup() { return std::tuple<std::decay_t<Args>...>{val<Args>()...}; } template<typename... Args> auto tup(const Args&... offsets) { return std::tuple<std::decay_t<Args>...>{val<Args>(offsets)...}; } private: template<typename T, typename F> std::vector<T> make_v(const int n, F f) { std::vector<T> ans; for (int i = 0; i < n; i++) { ans.push_back(f()); } return ans; } std::istream& m_is; }; scanner in; int main() { using pll = std::pair<ll, ll>; auto pos = [&](const ll N) -> pll { ll i = 0; for (;; i++) { if (N <= (2LL * i + 1) * (2LL * i + 1)) { break; } } ll end = (2LL * i + 1) * (2LL * i + 1); ll y = i, x = i; if (end - (2 * i) <= N) { return {y, x - (end - N)}; } end -= 2 * i, x -= 2 * i; if (end - (2 * i) <= N) { return {y - (end - N), x}; } end -= 2 * i, y -= 2 * i; if (end - (2 * i) <= N) { return {y, x + (end - N)}; } end -= 2 * i, y -= 2 * i; return {y + (end - N), x}; }; const auto [S, T] = in.tup<ll, ll>(); const auto [sy, sx] = pos(S); const auto [ty, tx] = pos(T); static_cast<void>(0); auto toOne = [&](ll y, ll x) { std::string ans; ll cnt = 0; while (y < 0) { ans += (cnt == 0 ? "DUD" : "D"), y++, cnt ^= 1; } while (y > 0) { ans += (cnt == 0 ? "UDU" : "U"), y--, cnt ^= 1; } while (x < 0) { ans += (cnt == 0 ? "RLR" : "R"), x++, cnt ^= 1; } while (x > 0) { ans += (cnt == 0 ? "LRL" : "L"), x--, cnt ^= 1; } return ans; }; auto StoOne = toOne(sy, sx); auto TtoOne = toOne(ty, tx); static_cast<void>(0); std::reverse(TtoOne.begin(), TtoOne.end()); for (auto& c : TtoOne) { if (c == 'U') { c = 'D'; } else if (c == 'D') { c = 'U'; } else if (c == 'L') { c = 'R'; } else if (c == 'R') { c = 'L'; } } const ll x = std::abs(sx + sy + tx + ty) % 2; const auto ans = StoOne + TtoOne; out.ln(x); out.ln(ans.size()); out.ln(ans); return 0; }