結果
問題 | No.952 危険な火薬庫 |
ユーザー | NyaanNyaan |
提出日時 | 2023-05-28 11:16:34 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,919 ms / 2,000 ms |
コード長 | 15,318 bytes |
コンパイル時間 | 3,225 ms |
コンパイル使用メモリ | 272,644 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-08 02:35:07 |
合計ジャッジ時間 | 40,479 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 1,909 ms
5,376 KB |
testcase_04 | AC | 1,904 ms
5,376 KB |
testcase_05 | AC | 1,906 ms
5,376 KB |
testcase_06 | AC | 1,907 ms
5,376 KB |
testcase_07 | AC | 1,905 ms
5,376 KB |
testcase_08 | AC | 1,919 ms
5,376 KB |
testcase_09 | AC | 1,915 ms
5,376 KB |
testcase_10 | AC | 1,905 ms
5,376 KB |
testcase_11 | AC | 4 ms
5,376 KB |
testcase_12 | AC | 1,907 ms
5,376 KB |
testcase_13 | AC | 1,903 ms
5,376 KB |
testcase_14 | AC | 1,906 ms
5,376 KB |
testcase_15 | AC | 1,912 ms
5,376 KB |
testcase_16 | AC | 1,910 ms
5,376 KB |
testcase_17 | AC | 1,908 ms
5,376 KB |
testcase_18 | AC | 1,905 ms
5,376 KB |
testcase_19 | AC | 52 ms
5,376 KB |
testcase_20 | AC | 118 ms
5,376 KB |
testcase_21 | AC | 1,912 ms
5,376 KB |
testcase_22 | AC | 1,905 ms
5,376 KB |
testcase_23 | AC | 168 ms
5,376 KB |
testcase_24 | AC | 1,689 ms
5,376 KB |
testcase_25 | AC | 1,910 ms
5,376 KB |
ソースコード
/** * date : 2023-05-28 11:16:30 * author : Nyaan */ #define NDEBUG using namespace std; // intrinstic #include <immintrin.h> #include <algorithm> #include <array> #include <bitset> #include <cassert> #include <cctype> #include <cfenv> #include <cfloat> #include <chrono> #include <cinttypes> #include <climits> #include <cmath> #include <complex> #include <cstdarg> #include <cstddef> #include <cstdint> #include <cstdio> #include <cstdlib> #include <cstring> #include <deque> #include <fstream> #include <functional> #include <initializer_list> #include <iomanip> #include <ios> #include <iostream> #include <istream> #include <iterator> #include <limits> #include <list> #include <map> #include <memory> #include <new> #include <numeric> #include <ostream> #include <queue> #include <random> #include <set> #include <sstream> #include <stack> #include <streambuf> #include <string> #include <tuple> #include <type_traits> #include <typeinfo> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> // utility namespace Nyaan { using ll = long long; using i64 = long long; using u64 = unsigned long long; using i128 = __int128_t; using u128 = __uint128_t; template <typename T> using V = vector<T>; template <typename T> using VV = vector<vector<T>>; using vi = vector<int>; using vl = vector<long long>; using vd = V<double>; using vs = V<string>; using vvi = vector<vector<int>>; using vvl = vector<vector<long long>>; template <typename T, typename U> struct P : pair<T, U> { template <typename... Args> P(Args... args) : pair<T, U>(args...) {} using pair<T, U>::first; using pair<T, U>::second; P &operator+=(const P &r) { first += r.first; second += r.second; return *this; } P &operator-=(const P &r) { first -= r.first; second -= r.second; return *this; } P &operator*=(const P &r) { first *= r.first; second *= r.second; return *this; } template <typename S> P &operator*=(const S &r) { first *= r, second *= r; return *this; } P operator+(const P &r) const { return P(*this) += r; } P operator-(const P &r) const { return P(*this) -= r; } P operator*(const P &r) const { return P(*this) *= r; } template <typename S> P operator*(const S &r) const { return P(*this) *= r; } P operator-() const { return P{-first, -second}; } }; using pl = P<ll, ll>; using pi = P<int, int>; using vp = V<pl>; constexpr int inf = 1001001001; constexpr long long infLL = 4004004004004004004LL; template <typename T> int sz(const T &t) { return t.size(); } template <typename T, typename U> inline bool amin(T &x, U y) { return (y < x) ? (x = y, true) : false; } template <typename T, typename U> inline bool amax(T &x, U y) { return (x < y) ? (x = y, true) : false; } template <typename T> inline T Max(const vector<T> &v) { return *max_element(begin(v), end(v)); } template <typename T> inline T Min(const vector<T> &v) { return *min_element(begin(v), end(v)); } template <typename T> inline long long Sum(const vector<T> &v) { return accumulate(begin(v), end(v), 0LL); } template <typename T> int lb(const vector<T> &v, const T &a) { return lower_bound(begin(v), end(v), a) - begin(v); } template <typename T> int ub(const vector<T> &v, const T &a) { return upper_bound(begin(v), end(v), a) - begin(v); } constexpr long long TEN(int n) { long long ret = 1, x = 10; for (; n; x *= x, n >>= 1) ret *= (n & 1 ? x : 1); return ret; } template <typename T, typename U> pair<T, U> mkp(const T &t, const U &u) { return make_pair(t, u); } template <typename T> vector<T> mkrui(const vector<T> &v, bool rev = false) { vector<T> ret(v.size() + 1); if (rev) { for (int i = int(v.size()) - 1; i >= 0; i--) ret[i] = v[i] + ret[i + 1]; } else { for (int i = 0; i < int(v.size()); i++) ret[i + 1] = ret[i] + v[i]; } return ret; }; template <typename T> vector<T> mkuni(const vector<T> &v) { vector<T> ret(v); sort(ret.begin(), ret.end()); ret.erase(unique(ret.begin(), ret.end()), ret.end()); return ret; } template <typename F> vector<int> mkord(int N,F f) { vector<int> ord(N); iota(begin(ord), end(ord), 0); sort(begin(ord), end(ord), f); return ord; } template <typename T> vector<int> mkinv(vector<T> &v) { int max_val = *max_element(begin(v), end(v)); vector<int> inv(max_val + 1, -1); for (int i = 0; i < (int)v.size(); i++) inv[v[i]] = i; return inv; } vector<int> mkiota(int n) { vector<int> ret(n); iota(begin(ret), end(ret), 0); return ret; } template <typename T> T mkrev(const T &v) { T w{v}; reverse(begin(w), end(w)); return w; } template <typename T> bool nxp(vector<T> &v) { return next_permutation(begin(v), end(v)); } template <typename T> using minpq = priority_queue<T, vector<T>, greater<T>>; } // namespace Nyaan // bit operation namespace Nyaan { __attribute__((target("popcnt"))) inline int popcnt(const u64 &a) { return _mm_popcnt_u64(a); } inline int lsb(const u64 &a) { return a ? __builtin_ctzll(a) : 64; } inline int ctz(const u64 &a) { return a ? __builtin_ctzll(a) : 64; } inline int msb(const u64 &a) { return a ? 63 - __builtin_clzll(a) : -1; } template <typename T> inline int gbit(const T &a, int i) { return (a >> i) & 1; } template <typename T> inline void sbit(T &a, int i, bool b) { if (gbit(a, i) != b) a ^= T(1) << i; } constexpr long long PW(int n) { return 1LL << n; } constexpr long long MSK(int n) { return (1LL << n) - 1; } } // namespace Nyaan // inout namespace Nyaan { template <typename T, typename U> ostream &operator<<(ostream &os, const pair<T, U> &p) { os << p.first << " " << p.second; return os; } template <typename T, typename U> istream &operator>>(istream &is, pair<T, U> &p) { is >> p.first >> p.second; return is; } template <typename T> ostream &operator<<(ostream &os, const vector<T> &v) { int s = (int)v.size(); for (int i = 0; i < s; i++) os << (i ? " " : "") << v[i]; return os; } template <typename T> istream &operator>>(istream &is, vector<T> &v) { for (auto &x : v) is >> x; return is; } istream &operator>>(istream &is, __int128_t &x) { string S; is >> S; x = 0; int flag = 0; for (auto &c : S) { if (c == '-') { flag = true; continue; } x *= 10; x += c - '0'; } if (flag) x = -x; return is; } istream &operator>>(istream &is, __uint128_t &x) { string S; is >> S; x = 0; for (auto &c : S) { x *= 10; x += c - '0'; } return is; } ostream &operator<<(ostream &os, __int128_t x) { if (x == 0) return os << 0; if (x < 0) os << '-', x = -x; string S; while (x) S.push_back('0' + x % 10), x /= 10; reverse(begin(S), end(S)); return os << S; } ostream &operator<<(ostream &os, __uint128_t x) { if (x == 0) return os << 0; string S; while (x) S.push_back('0' + x % 10), x /= 10; reverse(begin(S), end(S)); return os << S; } void in() {} template <typename T, class... U> void in(T &t, U &...u) { cin >> t; in(u...); } void out() { cout << "\n"; } template <typename T, class... U, char sep = ' '> void out(const T &t, const U &...u) { cout << t; if (sizeof...(u)) cout << sep; out(u...); } struct IoSetupNya { IoSetupNya() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); cerr << fixed << setprecision(7); } } iosetupnya; } // namespace Nyaan // debug #ifdef NyaanDebug #define trc(...) (void(0)) #else #define trc(...) (void(0)) #endif #ifdef NyaanLocal #define trc2(...) (void(0)) #else #define trc2(...) (void(0)) #endif // macro #define each(x, v) for (auto&& x : v) #define each2(x, y, v) for (auto&& [x, y] : v) #define all(v) (v).begin(), (v).end() #define rep(i, N) for (long long i = 0; i < (long long)(N); i++) #define repr(i, N) for (long long i = (long long)(N)-1; i >= 0; i--) #define rep1(i, N) for (long long i = 1; i <= (long long)(N); i++) #define repr1(i, N) for (long long i = (N); (long long)(i) > 0; i--) #define reg(i, a, b) for (long long i = (a); i < (b); i++) #define regr(i, a, b) for (long long i = (b)-1; i >= (a); i--) #define fi first #define se second #define ini(...) \ int __VA_ARGS__; \ in(__VA_ARGS__) #define inl(...) \ long long __VA_ARGS__; \ in(__VA_ARGS__) #define ins(...) \ string __VA_ARGS__; \ in(__VA_ARGS__) #define in2(s, t) \ for (int i = 0; i < (int)s.size(); i++) { \ in(s[i], t[i]); \ } #define in3(s, t, u) \ for (int i = 0; i < (int)s.size(); i++) { \ in(s[i], t[i], u[i]); \ } #define in4(s, t, u, v) \ for (int i = 0; i < (int)s.size(); i++) { \ in(s[i], t[i], u[i], v[i]); \ } #define die(...) \ do { \ Nyaan::out(__VA_ARGS__); \ return; \ } while (0) namespace Nyaan { void solve(); } int main() { Nyaan::solve(); } // namespace my_rand { using i64 = long long; using u64 = unsigned long long; // [0, 2^64 - 1) u64 rng() { static u64 _x = u64(chrono::duration_cast<chrono::nanoseconds>( chrono::high_resolution_clock::now().time_since_epoch()) .count()) * 10150724397891781847ULL; _x ^= _x << 7; return _x ^= _x >> 9; } // [l, r] i64 rng(i64 l, i64 r) { assert(l <= r); return l + rng() % (r - l + 1); } // [l, r) i64 randint(i64 l, i64 r) { assert(l < r); return l + rng() % (r - l); } // choose n numbers from [l, r) without overlapping vector<i64> randset(i64 l, i64 r, i64 n) { assert(l <= r && n <= r - l); unordered_set<i64> s; for (i64 i = n; i; --i) { i64 m = randint(l, r + 1 - i); if (s.find(m) != s.end()) m = r - i; s.insert(m); } vector<i64> ret; for (auto& x : s) ret.push_back(x); return ret; } // [0.0, 1.0) double rnd() { return rng() * 5.42101086242752217004e-20; } template <typename T> void randshf(vector<T>& v) { int n = v.size(); for (int i = 1; i < n; i++) swap(v[i], v[randint(0, i + 1)]); } } // namespace my_rand using my_rand::randint; using my_rand::randset; using my_rand::randshf; using my_rand::rnd; using my_rand::rng; struct Timer { chrono::high_resolution_clock::time_point st; Timer() { reset(); } void reset() { st = chrono::high_resolution_clock::now(); } chrono::milliseconds::rep elapsed() { auto ed = chrono::high_resolution_clock::now(); return chrono::duration_cast<chrono::milliseconds>(ed - st).count(); } }; // using namespace std; using namespace std; // NxN 行列がある // m_i := argmin_j (A_{i,j}) が単調増加であるときに m_i を列挙する // A(i, j) : A[i][j] を返す関数 template <typename T> vector<int> monotone_minima(int N, const function<T(int, int)>& A) { vector<int> res(N); auto dfs = [&](auto rc, int is, int ie, int l, int r) -> void { if (is == ie) return; int i = (is + ie) / 2; int m = l; T fim = A(i, m); for (int k = l + 1; k < r; k++) { T fik = A(i, k); if (fik < fim) fim = fik, m = k; } res[i] = m; rc(rc, is, i, l, m + 1); rc(rc, i + 1, ie, m, r); }; dfs(dfs, 0, N, 0, N); return res; } /** * @brief monotone minima */ // 辺コストが monge である DAG の D 辺 0-N 最短路 vector<long long> enumerate_monge_d_edge_shortest_path( int N, const function<long long(int, int)>& f, long long unreached = (1LL << 62) - 1) { using T = __int128_t; T INF = (T{1} << (sizeof(T) * 8 - 2)) - 1; vector<long long> ans(N + 1, unreached); vector<T> dp(N + 1, INF); dp[0] = 0; for (int d = 1; d <= N; d++) { vector<int> midx = monotone_minima<T>(N + 1, [&](int j, int i) -> T { return i < j ? dp[i] + f(i, j) : INF; }); for (int i = N; i >= d; i--) dp[i] = dp[midx[i]] + f(midx[i], i); ans[d] = dp[N]; } return ans; } /** * @brief monge グラフ上の d-辺最短路の d=1,...,N における列挙 */ // using namespace std; // reference:https://twitter.com/noshi91/status/1399003086362865673 namespace golden_section_search_impl { using i64 = long long; template <typename T, bool get_min = true> pair<i64, T> golden_section_search(const function<T(i64)>& f, i64 min, i64 max) { assert(min <= max); i64 a = min - 1, x, b; { i64 s = 1, t = 2; while (t < max - min + 2) swap(s += t, t); x = a + t - s, b = a + t; } T fx = f(x), fy; while (a + b != 2 * x) { i64 y = a + b - x; if (max < y || (fy = f(y), get_min ? fx < fy : fx > fy)) { b = a; a = y; } else { a = x; x = y; fx = fy; } } return {x, fx}; } } // namespace golden_section_search_impl using golden_section_search_impl::golden_section_search; /* @brief 黄金分割探索 */ using namespace std; // https://noshi91.hatenablog.com/entry/2023/02/18/005856 // 辺コストが monge である DAG の 0 - i 最短路 template <typename T> vector<T> monge_shortest_path(int N, const function<T(int, int)>& f) { T INF = (T{1} << (sizeof(T) * 8 - 2)) - 1; vector<T> dp(N + 1, INF); vector<int> x(N + 1, 0); auto check = [&](int from, int to) { if (from >= to) return; T cost = f(from, to); if (dp[from] + cost < dp[to]) dp[to] = dp[from] + cost, x[to] = from; }; auto dfs = [&](auto rc, int l, int r) -> void { if (l + 1 >= r) return; int m = (l + r) / 2; for (int i = x[l]; i <= x[r]; i++) check(i, m); rc(rc, l, m); for (int i = l + 1; i <= m; i++) check(i, r); rc(rc, m, r); }; dp[0] = 0, check(0, N), dfs(dfs, 0, N); return dp; } /** * @brief monge グラフ上の最短路 */ // 辺コストが monge である DAG の D 辺 0-N 最短路 // f : from -> to のコスト (long long) // upper : max abs(辺数を 1 増減させたときのコストの変化) // (内部で int128 で計算しているので upper は 1e18 でも壊れない) long long monge_d_edge_shortest_path(int N, int D, long long upper, const function<long long(int, int)>& f) { using T = __int128_t; upper = abs(upper); auto dp = [&](long long x) -> T { auto g = [&](int from, int to) -> T { return f(from, to) + x; }; T cost = monge_shortest_path<T>(N, g)[N]; return cost - T{1} * D * x; }; auto [_, res] = golden_section_search<T, false>(dp, -upper, upper); return res; } /** * @brief monge グラフ上の d-辺最短路 */ using namespace Nyaan; void q() { Timer timer; inl(N); vl a(N); in(a); vl r = mkrui(a); // 0 -> N+1 へのパス // i -> j の値 : (sum_{k=i...j-2} a_k)^2 auto cost = [&](int i, int j) -> ll { assert(i < j); if (i + 1 == j) return 0; return (r[j - 1] - r[i]) * (r[j - 1] - r[i]); }; auto ans = enumerate_monge_d_edge_shortest_path(N + 1, cost); rep1(d, N) out(ans[N + 1 - d]); trc(ans); // 何点か調べる { vector<int> ds; rep1(i, N + 1) ds.push_back(i); randshf(ds); each(d, ds) { if (timer.elapsed() > 1900) break; ll ans2 = monge_d_edge_shortest_path(N + 1, d, TEN(18), cost); assert(ans2 == ans[d]); } } } void Nyaan::solve() { int t = 1; // in(t); while (t--) q(); }