結果
| 問題 | No.972 選び方のスコア |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-09-17 16:57:26 |
| 言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 6,809 bytes |
| コンパイル時間 | 11,561 ms |
| コンパイル使用メモリ | 280,192 KB |
| 最終ジャッジ日時 | 2025-02-16 23:14:57 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge1 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 23 WA * 9 |
ソースコード
#line 1 "a.cpp"
#define PROBLEM ""
#line 2 "/home/kuhaku/atcoder/github/algo/lib/template/template.hpp"
#pragma GCC target("sse4.2,avx2,bmi2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
template <class T, class U>
bool chmax(T &a, const U &b) {
return a < (T)b ? a = (T)b, true : false;
}
template <class T, class U>
bool chmin(T &a, const U &b) {
return (T)b < a ? a = (T)b, true : false;
}
constexpr std::int64_t INF = 1000000000000000003;
constexpr int Inf = 1000000003;
constexpr int MOD = 1000000007;
constexpr int MOD_N = 998244353;
constexpr double EPS = 1e-7;
constexpr double PI = M_PI;
#line 3 "/home/kuhaku/atcoder/github/algo/lib/template/macro.hpp"
#define FOR(i, m, n) for (int i = (m); i < int(n); ++i)
#define FORR(i, m, n) for (int i = (m)-1; i >= int(n); --i)
#define FORL(i, m, n) for (int64_t i = (m); i < int64_t(n); ++i)
#define rep(i, n) FOR (i, 0, n)
#define repn(i, n) FOR (i, 1, n + 1)
#define repr(i, n) FORR (i, n, 0)
#define repnr(i, n) FORR (i, n + 1, 1)
#define all(s) (s).begin(), (s).end()
#line 3 "/home/kuhaku/atcoder/github/algo/lib/template/sonic.hpp"
struct Sonic {
Sonic() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
}
constexpr void operator()() const {}
} sonic;
#line 5 "/home/kuhaku/atcoder/github/algo/lib/template/atcoder.hpp"
using namespace std;
using ll = std::int64_t;
using ld = long double;
template <class T, class U>
std::istream &operator>>(std::istream &is, std::pair<T, U> &p) {
return is >> p.first >> p.second;
}
template <class T>
std::istream &operator>>(std::istream &is, std::vector<T> &v) {
for (T &i : v) is >> i;
return is;
}
template <class T, class U>
std::ostream &operator<<(std::ostream &os, const std::pair<T, U> &p) {
return os << '(' << p.first << ',' << p.second << ')';
}
template <class T>
std::ostream &operator<<(std::ostream &os, const std::vector<T> &v) {
for (auto it = v.begin(); it != v.end(); ++it) {
os << (it == v.begin() ? "" : " ") << *it;
}
return os;
}
template <class Head, class... Tail>
void co(Head &&head, Tail &&...tail) {
if constexpr (sizeof...(tail) == 0) std::cout << head << '\n';
else std::cout << head << ' ', co(std::forward<Tail>(tail)...);
}
template <class Head, class... Tail>
void ce(Head &&head, Tail &&...tail) {
if constexpr (sizeof...(tail) == 0) std::cerr << head << '\n';
else std::cerr << head << ' ', ce(std::forward<Tail>(tail)...);
}
template <typename T, typename... Args>
auto make_vector(T x, int arg, Args... args) {
if constexpr (sizeof...(args) == 0) return std::vector<T>(arg, x);
else return std::vector(arg, make_vector<T>(x, args...));
}
void setp(int n) {
std::cout << std::fixed << std::setprecision(n);
}
void Yes(bool is_correct = true) {
std::cout << (is_correct ? "Yes" : "No") << '\n';
}
void No(bool is_not_correct = true) {
Yes(!is_not_correct);
}
void YES(bool is_correct = true) {
std::cout << (is_correct ? "YES" : "NO") << '\n';
}
void NO(bool is_not_correct = true) {
YES(!is_not_correct);
}
void Takahashi(bool is_correct = true) {
std::cout << (is_correct ? "Takahashi" : "Aoki") << '\n';
}
void Aoki(bool is_not_correct = true) {
Takahashi(!is_not_correct);
}
#line 3 "a.cpp"
template <class T>
struct interval_heap {
constexpr interval_heap() : _size(), data(1) {}
constexpr int size() const {
return _size;
}
T get_max() const {
assert(_size);
return data[1];
}
T get_min() const {
assert(_size);
return _size == 1 ? data[1] : data[2];
}
void push(const T &x) {
data.emplace_back(x);
apply();
}
void push(T &&x) {
data.emplace_back(x);
apply();
}
template <typename... Args>
void emplace(Args &&...args) {
data.emplace_back(std::forward<Args>(args)...);
apply();
}
void pop_max() {
assert(_size);
--_size;
if (_size < 2) {
data.pop_back();
} else {
swap(data[1], data.back());
data.pop_back();
down(1);
}
}
void pop_min() {
assert(_size);
--_size;
if (_size < 2) {
data.pop_back();
} else {
swap(data[2], data.back());
data.pop_back();
up(2);
}
}
private:
int _size;
std::vector<T> data;
std::pair<int, int> next(int idx) {
assert(idx != 2 && _size >= 2);
if (idx & 1) {
if (idx * 2 + 1 <= _size) {
idx = idx * 2 + 1;
return std::make_pair(idx, idx + 2 <= _size ? idx + 2 : idx);
}
++idx;
if (idx <= _size)
return std::make_pair(idx, idx);
}
idx = (idx / 2) & ~1;
return std::make_pair(idx, idx);
}
std::pair<int, int> prev(int idx) {
assert(idx != 1);
if (~idx & 1) {
if (idx * 2 - 1 <= _size) {
idx = idx * 2;
if (idx + 2 <= _size)
return std::make_pair(idx, idx + 2);
if (idx + 1 <= _size)
return std::make_pair(idx, idx);
}
--idx;
return std::make_pair(idx, idx);
}
idx = (idx / 2 - 1) | 1;
return std::make_pair(idx, idx);
}
int down(int idx) {
while (idx != 2) {
auto &&[x, y] = next(idx);
if (x != y && data[x] < data[y])
swap(x, y);
if (data[x] < data[idx])
break;
swap(data[x], data[idx]);
idx = x;
}
return idx;
}
int up(int idx) {
while (idx != 1) {
auto &&[x, y] = prev(idx);
if (x != y && data[y] < data[x])
swap(x, y);
if (data[idx] < data[x])
break;
swap(data[idx], data[x]);
idx = x;
}
return idx;
}
void apply() {
++_size;
if (_size >= 3) {
int idx = _size;
idx = down(idx);
idx = up(idx);
} else if (_size == 2 && data[2] < data[1]) {
swap(data[1], data[2]);
}
}
};
int main(void) {
int n;
cin >> n;
vector<int> a(n);
cin >> a;
interval_heap<int> ih;
rep (i, n) {
ih.emplace(a[i]);
}
int m = ih.get_min();
ih.pop_min();
ll ans = 0;
ll s = m;
while (ih.size() >= 2) {
s += ih.get_max();
s += ih.get_min();
m = ih.get_min();
ih.pop_max();
ih.pop_min();
chmax(ans, s - (ll)m * (n - ih.size()));
}
co(ans);
return 0;
}