結果
問題 | No.919 You Are A Project Manager |
ユーザー | Pachicobue |
提出日時 | 2019-10-30 17:51:42 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 132 ms / 3,000 ms |
コード長 | 7,116 bytes |
コンパイル時間 | 2,521 ms |
コンパイル使用メモリ | 212,652 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-27 19:29:24 |
合計ジャッジ時間 | 6,532 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
(要ログイン)
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 | 74 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 | AC | 15 ms
5,376 KB |
testcase_05 | AC | 17 ms
5,376 KB |
testcase_06 | AC | 4 ms
5,376 KB |
testcase_07 | AC | 52 ms
5,376 KB |
testcase_08 | AC | 14 ms
5,376 KB |
testcase_09 | AC | 10 ms
5,376 KB |
testcase_10 | AC | 18 ms
5,376 KB |
testcase_11 | AC | 16 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 21 ms
5,376 KB |
testcase_14 | AC | 3 ms
5,376 KB |
testcase_15 | AC | 8 ms
5,376 KB |
testcase_16 | AC | 29 ms
5,376 KB |
testcase_17 | AC | 71 ms
5,376 KB |
testcase_18 | AC | 72 ms
6,944 KB |
testcase_19 | AC | 73 ms
6,940 KB |
testcase_20 | AC | 118 ms
6,944 KB |
testcase_21 | AC | 73 ms
6,944 KB |
testcase_22 | AC | 56 ms
6,940 KB |
testcase_23 | AC | 55 ms
6,944 KB |
testcase_24 | AC | 59 ms
6,940 KB |
testcase_25 | AC | 57 ms
6,940 KB |
testcase_26 | AC | 117 ms
6,940 KB |
testcase_27 | AC | 102 ms
6,940 KB |
testcase_28 | AC | 127 ms
6,940 KB |
testcase_29 | AC | 69 ms
6,940 KB |
testcase_30 | AC | 70 ms
6,940 KB |
testcase_31 | AC | 66 ms
6,940 KB |
testcase_32 | AC | 68 ms
6,944 KB |
testcase_33 | AC | 61 ms
6,944 KB |
testcase_34 | AC | 61 ms
6,944 KB |
testcase_35 | AC | 132 ms
6,940 KB |
testcase_36 | AC | 132 ms
6,944 KB |
testcase_37 | AC | 130 ms
6,944 KB |
testcase_38 | AC | 132 ms
6,944 KB |
testcase_39 | AC | 3 ms
6,944 KB |
testcase_40 | AC | 8 ms
6,940 KB |
testcase_41 | AC | 3 ms
6,940 KB |
testcase_42 | AC | 4 ms
6,940 KB |
testcase_43 | AC | 5 ms
6,944 KB |
testcase_44 | AC | 10 ms
6,944 KB |
testcase_45 | AC | 4 ms
6,944 KB |
testcase_46 | AC | 8 ms
6,940 KB |
testcase_47 | AC | 56 ms
6,944 KB |
testcase_48 | AC | 54 ms
6,940 KB |
testcase_49 | AC | 59 ms
6,944 KB |
testcase_50 | AC | 56 ms
6,940 KB |
testcase_51 | AC | 52 ms
6,940 KB |
testcase_52 | AC | 41 ms
6,944 KB |
testcase_53 | AC | 52 ms
6,944 KB |
testcase_54 | AC | 8 ms
6,940 KB |
testcase_55 | AC | 2 ms
6,940 KB |
testcase_56 | AC | 2 ms
6,940 KB |
testcase_57 | AC | 2 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> #pragma GCC diagnostic ignored "-Wsign-compare" #pragma GCC diagnostic ignored "-Wsign-conversion" using i32 = int32_t; using i64 = int64_t; using u32 = uint32_t; using u64 = uint64_t; using uint = unsigned int; using usize = std::size_t; using ll = long long; using ull = unsigned long long; using ld = long double; template<typename T> constexpr T popcount(const T u) { return u ? static_cast<T>(__builtin_popcountll(static_cast<u64>(u))) : static_cast<T>(0); } template<typename T> constexpr T log2p1(const T u) { return u ? static_cast<T>(64 - __builtin_clzll(static_cast<u64>(u))) : static_cast<T>(0); } template<typename T> constexpr T msbp1(const T u) { return log2p1(u); } template<typename T> constexpr T lsbp1(const T u) { return __builtin_ffsll(u); } template<typename T> constexpr T clog(const T u) { return u ? log2p1(u - 1) : static_cast<T>(u); } template<typename T> constexpr bool ispow2(const T u) { return u and (static_cast<u64>(u) & static_cast<u64>(u - 1)) == 0; } template<typename T> constexpr T ceil2(const T u) { return static_cast<T>(1) << clog(u); } template<typename T> constexpr T floor2(const T u) { return u == 0 ? static_cast<T>(0) : static_cast<T>(1) << (log2p1(u) - 1); } template<typename T> constexpr bool btest(const T mask, const usize ind) { return static_cast<bool>((static_cast<u64>(mask) >> ind) & static_cast<u64>(1)); } template<typename T> void bset(T& mask, const usize ind) { mask |= (static_cast<T>(1) << ind); } template<typename T> void breset(T& mask, const usize ind) { mask &= ~(static_cast<T>(1) << ind); } template<typename T> void bflip(T& mask, const usize ind) { mask ^= (static_cast<T>(1) << ind); } template<typename T> void bset(T& mask, const usize ind, const bool b) { (b ? bset(mask, ind) : breset(mask, ind)); } template<typename T> constexpr T bcut(const T mask, const usize ind) { return ind == 0 ? static_cast<T>(0) : static_cast<T>((static_cast<u64>(mask) << (64 - ind)) >> (64 - 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); } constexpr unsigned int mod = 1000000007; 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> T read() { T v; return std::cin >> v, v; } template<typename T> std::vector<T> read_vec(const std::size_t size) { std::vector<T> v(size); for (auto& e : v) { std::cin >> e; } return v; } template<typename... Types> auto read_vals() { return std::tuple<std::decay_t<Types>...>{read<Types>()...}; } #define SHOW(...) static_cast<void>(0) template<typename T> std::vector<T> make_v(const std::size_t size, T v) { return std::vector<T>(size, v); } template<class... Args> auto make_v(const std::size_t size, Args... args) { return std::vector<decltype(make_v(args...))>(size, make_v(args...)); } template<usize lg> class wavelet_matrix { public: using value_type = u64; template<typename InIt> wavelet_matrix(const InIt first, const InIt last) : sz{static_cast<usize>(std::distance(first, last))} { for (usize i = 0; i < lg; i++) { zero[i] = 0, table[i] = fid(sz); } std::vector<value_type> v{first, last}; std::vector<value_type> z(sz), o(sz); usize zn = 0, on = 0; for (usize d = 0; d < lg; d++) { zn = 0, on = 0; for (usize i = 0; i < sz; i++) { const bool b = btest(v[i], lg - d - 1); table[d].set(i, b), (b ? o[on++] : z[zn++]) = v[i]; } table[d].build(), zero[d] = zn, std::swap(v, z); for (usize i = 0; i < on; i++) { v[zn + i] = o[i]; } } } usize less_than(usize l, usize r, const value_type v) const { assert(l <= r); usize ans = 0; for (usize i = 0; i < lg; i++) { const usize zl = table[i].zero(l), zr = table[i].zero(r), z = zero[i]; if (btest(v, lg - i - 1)) { ans += zr - zl, l += z - zl, r += z - zr; } else { l = zl, r = zr; } } return ans; } usize range_freq(const usize l, const usize r, const value_type vmin, const value_type vsup) const { return less_than(l, r, vsup) - less_than(l, r, vmin); } value_type quantile(usize l, usize r, usize n) const { assert(l <= r), assert(r - l > n); value_type ans = 0; for (usize i = 0; i < lg; i++) { const usize zl = table[i].zero(l), zr = table[i].zero(r), z = zero[i]; if (n >= zr - zl) { ans += value_type(1) << (lg - i - 1), l += z - zl, r += z - zr, n -= (zr - zl); } else { l = zl, r = zr; } } return ans; } private: static constexpr usize bucket_size = sizeof(value_type) * 8; static constexpr usize bslog = log2p1(bucket_size) - 1; static constexpr usize wind(const usize n) { return n >> (bslog); } static constexpr usize bind(const usize n) { return bcut(n, bslog); } class fid { private: usize sz, bn; std::vector<value_type> data; std::vector<usize> large; public: fid() : sz{0} {} fid(const usize b) : sz{b}, bn{wind(sz) + 2}, data(bn, 0), large(bn, 0) {} void build() { for (usize i = 1; i < large.size(); i++) { large[i] = large[i - 1] + popcount(data[i - 1]); } } bool operator[](const usize n) const { return btest(data[wind(n)], bind(n)); } void set(const usize n, const bool b) { bset(data[wind(n)], bind(n), b); } usize one(const usize n) const { return large[wind(n)] + popcount(bcut(data[wind(n)], bind(n))); } usize zero(const usize n) const { return n - one(n); } }; const usize sz; std::array<usize, lg> zero; std::array<fid, lg> table; }; int main() { const auto n = read<usize>(); const auto a = read_vec<ll>(n); auto b = a; constexpr ll MAX = 1000000000; for (usize i = 0; i < n; i++) { b[i] += MAX; } wavelet_matrix<32> wm(b.begin(), b.end()); auto median = [&](const usize l, const usize r) -> ll { const usize m = (r - l - 1) / 2; return wm.quantile(l, r, m) - MAX; }; ll ans = 0; for (usize k = 1; k <= n; k++) { std::vector<ll> left{0}, right{0}; for (usize l = 0; l + k <= n; l += k) { left.push_back(median(l, l + k) * (ll)k); } for (int r = (int)n; r - (int)k >= 0; r -= k) { right.push_back(median(r - k, r) * (ll)k); } const usize s = left.size() - 1; for (usize i = 1; i <= s; i++) { left[i] += left[i - 1], right[i] += right[i - 1]; } for (usize i = 1; i <= s; i++) { chmax(left[i], left[i - 1]), chmax(right[i], right[i - 1]); } for (usize i = 0; i <= s; i++) { chmax(ans, left[i] + right[s - i]); } } std::cout << ans << std::endl; return 0; }