結果
| 問題 | No.2735 Demarcation |
| ユーザー |
 hitonanode
|
| 提出日時 | 2024-04-19 22:14:21 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
(最新)
AC
(最初)
|
| 実行時間 | - |
| コード長 | 11,557 bytes |
| コンパイル時間 | 2,280 ms |
| コンパイル使用メモリ | 193,828 KB |
| 実行使用メモリ | 11,136 KB |
| 最終ジャッジ日時 | 2024-10-11 15:36:51 |
| 合計ジャッジ時間 | 15,672 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge3 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 27 TLE * 1 |
ソースコード
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <complex>
#include <deque>
#include <forward_list>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iostream>
#include <limits>
#include <list>
#include <map>
#include <memory>
#include <numeric>
#include <optional>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <tuple>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
using lint = long long;
using pint = pair<int, int>;
using plint = pair<lint, lint>;
struct fast_ios { fast_ios(){ cin.tie(nullptr), ios::sync_with_stdio(false), cout << fixed << setprecision(20); }; } fast_ios_;
#define ALL(x) (x).begin(), (x).end()
#define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++)
#define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--)
#define REP(i, n) FOR(i,0,n)
#define IREP(i, n) IFOR(i,0,n)
template <typename T> bool chmax(T &m, const T q) { return m < q ? (m = q, true) : false; }
template <typename T> bool chmin(T &m, const T q) { return m > q ? (m = q, true) : false; }
const std::vector<std::pair<int, int>> grid_dxs{{1, 0}, {-1, 0}, {0, 1}, {0, -1}};
int floor_lg(long long x) { return x <= 0 ? -1 : 63 - __builtin_clzll(x); }
template <class T1, class T2> T1 floor_div(T1 num, T2 den) { return (num > 0 ? num / den : -((-num + den - 1) / den)); }
template <class T1, class T2> std::pair<T1, T2> operator+(const std::pair<T1, T2> &l, const std::pair<T1, T2> &r) { return std::make_pair(l.first + r.first, l.second + r.second); }
template <class T1, class T2> std::pair<T1, T2> operator-(const std::pair<T1, T2> &l, const std::pair<T1, T2> &r) { return std::make_pair(l.first - r.first, l.second - r.second); }
template <class T> std::vector<T> sort_unique(std::vector<T> vec) { sort(vec.begin(), vec.end()), vec.erase(unique(vec.begin(), vec.end()), vec.end()); return vec; }
template <class T> int arglb(const std::vector<T> &v, const T &x) { return std::distance(v.begin(), std::lower_bound(v.begin(), v.end(), x)); }
template <class T> int argub(const std::vector<T> &v, const T &x) { return std::distance(v.begin(), std::upper_bound(v.begin(), v.end(), x)); }
template <class IStream, class T> IStream &operator>>(IStream &is, std::vector<T> &vec) { for (auto &v : vec) is >> v; return is; }
template <class OStream, class T> OStream &operator<<(OStream &os, const std::vector<T> &vec);
template <class OStream, class T, size_t sz> OStream &operator<<(OStream &os, const std::array<T, sz> &arr);
template <class OStream, class T, class TH> OStream &operator<<(OStream &os, const std::unordered_set<T, TH> &vec);
template <class OStream, class T, class U> OStream &operator<<(OStream &os, const pair<T, U> &pa);
template <class OStream, class T> OStream &operator<<(OStream &os, const std::deque<T> &vec);
template <class OStream, class T> OStream &operator<<(OStream &os, const std::set<T> &vec);
template <class OStream, class T> OStream &operator<<(OStream &os, const std::multiset<T> &vec);
template <class OStream, class T> OStream &operator<<(OStream &os, const std::unordered_multiset<T> &vec);
template <class OStream, class T, class U> OStream &operator<<(OStream &os, const std::pair<T, U> &pa);
template <class OStream, class TK, class TV> OStream &operator<<(OStream &os, const std::map<TK, TV> &mp);
template <class OStream, class TK, class TV, class TH> OStream &operator<<(OStream &os, const std::unordered_map<TK, TV, TH> &mp);
template <class OStream, class... T> OStream &operator<<(OStream &os, const std::tuple<T...> &tpl);
template <class OStream, class T> OStream &operator<<(OStream &os, const std::vector<T> &vec) { os << '['; for (auto v : vec) os << v << ','; os << ']'; return os; }
template <class OStream, class T, size_t sz> OStream &operator<<(OStream &os, const std::array<T, sz> &arr) { os << '['; for (auto v : arr) os << v << ','; os << ']'; return os; }
template <class... T> std::istream &operator>>(std::istream &is, std::tuple<T...> &tpl) { std::apply([&is](auto &&... args) { ((is >> args), ...);}, tpl); return is; }
template <class OStream, class... T> OStream &operator<<(OStream &os, const std::tuple<T...> &tpl) { os << '('; std::apply([&os](auto &&... args) { ((os << args << ','), ...);}, tpl); return os << ')'; }
template <class OStream, class T, class TH> OStream &operator<<(OStream &os, const std::unordered_set<T, TH> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <class OStream, class T> OStream &operator<<(OStream &os, const std::deque<T> &vec) { os << "deq["; for (auto v : vec) os << v << ','; os << ']'; return os; }
template <class OStream, class T> OStream &operator<<(OStream &os, const std::set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <class OStream, class T> OStream &operator<<(OStream &os, const std::multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <class OStream, class T> OStream &operator<<(OStream &os, const std::unordered_multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <class OStream, class T, class U> OStream &operator<<(OStream &os, const std::pair<T, U> &pa) { return os << '(' << pa.first << ',' << pa.second << ')'; }
template <class OStream, class TK, class TV> OStream &operator<<(OStream &os, const std::map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; }
template <class OStream, class TK, class TV, class TH> OStream &operator<<(OStream &os, const std::unordered_map<TK, TV, TH> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; }
#ifdef HITONANODE_LOCAL
const string COLOR_RESET = "\033[0m", BRIGHT_GREEN = "\033[1;32m", BRIGHT_RED = "\033[1;31m", BRIGHT_CYAN = "\033[1;36m", NORMAL_CROSSED = "\033[0;9;37m", RED_BACKGROUND = "\033[1;41m", NORMAL_FAINT = "\033[0;2m";
#define dbg(x) std::cerr << BRIGHT_CYAN << #x << COLOR_RESET << " = " << (x) << NORMAL_FAINT << " (L" << __LINE__ << ") " << __FILE__ << COLOR_RESET << std::endl
#define dbgif(cond, x) ((cond) ? std::cerr << BRIGHT_CYAN << #x << COLOR_RESET << " = " << (x) << NORMAL_FAINT << " (L" << __LINE__ << ") " << __FILE__ << COLOR_RESET << std::endl : std::cerr)
#else
#define dbg(x) ((void)0)
#define dbgif(cond, x) ((void)0)
#endif
// Sorted set of integers [0, n)
// Space complexity: (64 / 63) n + O(log n) bit
class fast_set {
static constexpr int B = 64;
int n;
int cnt;
std::vector<std::vector<uint64_t>> _d;
static int bsf(uint64_t x) { return __builtin_ctzll(x); }
static int bsr(uint64_t x) { return 63 - __builtin_clzll(x); }
public:
// 0 以上 n_ 未満の整数が入れられる sorted set を作成
fast_set(int n_) : n(n_), cnt(0) {
do { n_ = (n_ + B - 1) / B, _d.push_back(std::vector<uint64_t>(n_)); } while (n_ > 1);
}
bool contains(int i) const {
assert(0 <= i and i < n);
return (_d.front().at(i / B) >> (i % B)) & 1;
}
void insert(int i) {
assert(0 <= i and i < n);
if (contains(i)) return;
++cnt;
for (auto &vec : _d) {
bool f = vec.at(i / B);
vec.at(i / B) |= 1ULL << (i % B), i /= B;
if (f) break;
}
}
void erase(int i) {
assert(0 <= i and i < n);
if (!contains(i)) return;
--cnt;
for (auto &vec : _d) {
vec.at(i / B) &= ~(1ULL << (i % B)), i /= B;
if (vec.at(i)) break;
}
}
// i 以上の最小要素 なければ default_val
int next(int i, const int default_val) const {
assert(0 <= i and i <= n);
for (auto itr = _d.cbegin(); itr != _d.cend(); ++itr, i = i / B + 1) {
if (i / B >= int(itr->size())) break;
if (auto d = itr->at(i / B) >> (i % B); d) {
i += bsf(d);
while (itr != _d.cbegin()) i = i * B + bsf((--itr)->at(i));
return i;
}
}
return default_val;
}
int next(const int i) const { return next(i, n); }
// i 以下の最小要素 なければ default_val
int prev(int i, int default_val = -1) const {
assert(-1 <= i and i < n);
for (auto itr = _d.cbegin(); itr != _d.cend() and i >= 0; ++itr, i = i / B - 1) {
if (auto d = itr->at(i / B) << (B - 1 - i % B); d) {
i += bsr(d) - (B - 1);
while (itr != _d.cbegin()) i = i * B + bsr((--itr)->at(i));
return i;
}
}
return default_val;
}
// return minimum element (if exists) or `n` (empty)
int min() const { return next(0); }
// return maximum element (if exists) or `-1` (empty)
int max() const { return prev(n - 1); }
int size() const { return cnt; }
bool empty() const { return cnt == 0; }
void clear() {
if (!cnt) return;
cnt = 0;
auto rec = [&](auto &&self, int d, int x) -> void {
if (d) {
for (auto m = _d.at(d).at(x); m;) {
int i = bsf(m);
m -= 1ULL << i, self(self, d - 1, x * B + i);
}
}
_d.at(d).at(x) = 0;
};
rec(rec, _d.size() - 1, 0);
}
};
int main() {
int N;
cin >> N;
vector<int> X(N);
cin >> X;
vector<int> cs(N);
REP(i, N - 1) cs.at(i + 1) = cs.at(i) + (X.at(i) == X.at(i + 1));
dbg(cs);
dbg(X);
int Q;
cin >> Q;
fast_set fs(N + 1);
constexpr lint inf = (1LL << 60) + 10;
while (Q--) {
auto solve = [&](int l, int r, lint S) -> int {
const int sz = r - l;
const int nsame = cs.at(r - 1) - cs.at(l);
// check -1
{
lint tmp = 1;
REP(_, sz - 1) {
tmp *= 2;
if (tmp > S) break;
}
if (tmp <= S) return -1;
}
// check 0
{
lint tmp = 1;
REP(_, nsame) {
tmp *= 2;
if (tmp > S) break;
}
if (tmp > S) return 0;
}
if (sz <= 91) {
vector<lint> dp(sz + 1);
int ok = 1, ng = min(61, sz + 1);
while (ng - ok > 1) {
int mid = (ok + ng) / 2;
dp.assign(sz + 1, 0);
dp.at(0) = 1;
FOR(i, l, r) {
fs.clear();
FOR(j, i, r) {
fs.insert(X.at(j));
if (fs.size() > mid) break;
dp.at(j - l + 1) += dp.at(i - l);
chmin(dp.at(j - l + 1), inf);
}
}
if (dp.at(sz) <= S) {
ok = mid;
} else {
ng = mid;
}
}
return ok;
}
return 1;
};
int l, r;
lint S;
cin >> l >> r >> S;
--l;
cout << solve(l, r, S) << '\n';
}
}