結果
| 問題 | No.198 キャンディー・ボックス2 |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-02-11 15:55:09 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 2 ms / 1,000 ms |
| コード長 | 3,911 bytes |
| コンパイル時間 | 3,441 ms |
| コンパイル使用メモリ | 312,548 KB |
| 実行使用メモリ | 7,720 KB |
| 最終ジャッジ日時 | 2025-11-26 11:47:58 |
| 合計ジャッジ時間 | 4,617 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 27 |
ソースコード
#ifdef ATCODER
#pragma GCC target("sse4.2,avx512f,avx512dq,avx512ifma,avx512cd,avx512bw,avx512vl,bmi2")
#endif
#pragma GCC optimize("Ofast,fast-math,unroll-all-loops")
#include <bits/stdc++.h>
#ifndef ATCODER
#pragma GCC target("sse4.2,avx2,bmi2")
#endif
template <class T, class U>
constexpr bool chmax(T &a, const U &b) {
return a < (T)b ? a = (T)b, true : false;
}
template <class T, class U>
constexpr 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 double EPS = 1e-7;
constexpr double PI = 3.14159265358979323846;
#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()
struct Sonic {
Sonic() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
std::cout << std::fixed << std::setprecision(20);
}
constexpr void operator()() const {}
} sonic;
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)...);
}
void Yes(bool is_correct = true) { std::cout << (is_correct ? "Yes\n" : "No\n"); }
void No(bool is_not_correct = true) { Yes(!is_not_correct); }
void YES(bool is_correct = true) { std::cout << (is_correct ? "YES\n" : "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); }
int main(void) {
ll b;
cin >> b;
int n;
cin >> n;
vector<ll> c(n);
cin >> c;
ll s = reduce(all(c));
auto f = [&](ll x) {
ll res = 0;
rep (i, n) {
res += abs(c[i] - x);
}
return res;
};
ll l = -1, r = (s + b) / n + 1;
ll m1 = std::round((l * std::numbers::phi + r) / (1 + std::numbers::phi)),
m2 = std::round((m1 * std::numbers::phi + r) / (1 + std::numbers::phi));
ll vl = f(m1), vr = f(m2);
while (true) {
if (vl < vr) {
if (l + 1 == m1)
break;
r = m2;
m2 = m1;
vr = vl;
m1 = std::round((l + m2 * std::numbers::phi) / (1 + std::numbers::phi));
vl = f(m1);
} else {
if (m2 + 1 == r)
break;
l = m1;
m1 = m2;
vl = vr;
m2 = std::round((m1 * std::numbers::phi + r) / (1 + std::numbers::phi));
vr = f(m2);
}
}
if (vl < vr)
cout << vl << endl;
else
cout << vr << endl;
return 0;
}