結果
| 問題 |
No.919 You Are A Project Manager
|
| ユーザー |
kcvlex
|
| 提出日時 | 2019-10-25 23:13:29 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 4,187 bytes |
| コンパイル時間 | 1,840 ms |
| コンパイル使用メモリ | 181,116 KB |
| 実行使用メモリ | 14,820 KB |
| 最終ジャッジ日時 | 2024-09-13 08:29:37 |
| 合計ジャッジ時間 | 21,944 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | -- * 3 |
| other | AC * 13 WA * 6 TLE * 2 -- * 34 |
ソースコード
// #define DEBUGGING
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ALL(V) (V).begin(), (V).end()
#define ALLR(V) (V).rbegin(), (V).rend()
template <typename T> using V = vector<T>;
template <typename T> using VV = V<V<T>>;
using ll = int64_t;
using ull = uint64_t;
using PLL = pair<ll, ll>;
template <typename T> const T& var_min(const T &t) { return t; }
template <typename T> const T& var_max(const T &t) { return t; }
template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return min(t, var_min(tail...)); }
template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return max(t, var_max(tail...)); }
template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); }
template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); }
template <typename T> const T& clamp(const T &t, const T &low, const T &high) { return max(low, min(high, t)); }
template <typename T> void chclamp(T &t, const T &low, const T &high) { t = clamp(t, low, high); }
namespace init__ {
struct InitIO {
InitIO() {
cin.tie(nullptr);
ios_base::sync_with_stdio(false);
cout << fixed << setprecision(30);
}
} init_io;
}
#ifdef DEBUGGING
// #include "../debug/debug.cpp"
#include "../../debug/debug.cpp"
#else
#define DEBUG(...) 0
#define DEBUG_SEPARATOR_LINE 0
#endif
template <typename T>
T make_v(T init) { return init; }
template <typename T, typename... Tail>
auto make_v(T init, size_t s, Tail... tail) {
#define rec make_v(init, tail...)
return V<decltype(rec)>(s, rec);
#undef rec
}
const ll inf = 5e15;
const size_t size = 1e4 + 10;
ll left_max[size], right_max[size];
VV<PLL> calc(const V<ll> &B) {
ll N = B.size();
VV<PLL> clis(N);
for(ll i = 0; i < N; i++) {
priority_queue<ll> min_pq;
priority_queue<ll, V<ll>, greater<ll>> max_pq; // poped from min_value to max_value
min_pq.push(-inf);
max_pq.push(inf);
for(ll j = 0; i + j < N; j++) {
ll pre = i;
ll num = j + 1;
if(i && pre < j) break;
{
ll e = B[i + j];
ll tmp;
if((max_pq.size() + min_pq.size()) % 2 == 0) {
tmp = max_pq.top();
max_pq.pop();
} else {
tmp = min_pq.top();
min_pq.pop();
}
DEBUG(tmp);
max_pq.push(max(tmp, e));
min_pq.push(min(tmp, e));
DEBUG(make_tuple(max_pq.size(),min_pq.size()));
}
if(pre % num) continue;
// DEBUG(max_pq.size());
// DEBUG(make_tuple(i, clis.size(), num, max_pq.top()));
clis[i].emplace_back(num, min_pq.top());
}
}
return clis;
}
int main() {
ll N;
cin >> N;
V<ll> B(N);
for(auto &&ele : B) cin >> ele;
auto from_left = calc(B);
reverse(ALL(B));
auto from_right = calc(B);
reverse(ALL(B));
ll ans = 0;
for(ll K = 1; K <= N; K++) {
{
left_max[0] = 0;
ll cur = 0;
for(ll i = 1; i * K < N; i++) {
ll from = (i - 1) * K;
auto ite = lower_bound(ALL(from_left[from]), PLL(K, -inf));
cur += ite->second;
left_max[i] = max(left_max[i - 1], cur);
}
}
{
right_max[0] = 0;
ll cur = 0;
for(ll i = 1; i * K < N; i++) {
ll from = (i - 1) * K;
auto ite = lower_bound(ALL(from_right[from]), PLL(K, -inf));
cur += ite->second;
right_max[i] = max(right_max[i - 1], cur);
}
}
for(ll left = 0; left * K <= N; left++) {
ll rest = N - left * K;
ll tmp = left_max[left] + right_max[rest / K];
DEBUG(make_tuple(K, left, rest, left_max[left], right_max[rest/K], tmp * K));
chmax(ans, tmp * K);
}
}
cout << ans << endl;
return 0;
}
kcvlex