結果

問題 No.2329 Nafmo、イカサマをする
ユーザー Forested
提出日時 2023-05-28 13:47:10
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 297 ms / 2,000 ms
コード長 3,436 bytes
コンパイル時間 1,368 ms
コンパイル使用メモリ 129,656 KB
最終ジャッジ日時 2025-02-13 10:18:01
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 40
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#ifndef LOCAL
#define FAST_IO
#endif
// ============
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#define OVERRIDE(a, b, c, d, ...) d
#define REP2(i, n) for (i32 i = 0; i < (i32)(n); ++i)
#define REP3(i, m, n) for (i32 i = (i32)(m); i < (i32)(n); ++i)
#define REP(...) OVERRIDE(__VA_ARGS__, REP3, REP2)(__VA_ARGS__)
#define PER(i, n) for (i32 i = (i32)(n) - 1; i >= 0; --i)
#define ALL(x) begin(x), end(x)
using namespace std;
using u32 = unsigned int;
using u64 = unsigned long long;
using i32 = signed int;
using i64 = signed long long;
using f64 = double;
using f80 = long double;
template <typename T>
using Vec = vector<T>;
template <typename T>
bool chmin(T &x, const T &y) {
if (x > y) {
x = y;
return true;
}
return false;
}
template <typename T>
bool chmax(T &x, const T &y) {
if (x < y) {
x = y;
return true;
}
return false;
}
template <typename T>
Vec<tuple<i32, i32, T>> runlength(const Vec<T> &a) {
if (a.empty()) {
return Vec<tuple<i32, i32, T>>();
}
Vec<tuple<i32, i32, T>> ret;
i32 prv = 0;
REP(i, 1, a.size()) {
if (a[i - 1] != a[i]) {
ret.emplace_back(prv, i, a[i - 1]);
prv = i;
}
}
ret.emplace_back(prv, (i32)a.size(), a.back());
return ret;
}
#ifdef INT128
using u128 = __uint128_t;
using i128 = __int128_t;
istream &operator>>(istream &is, i128 &x) {
i64 v;
is >> v;
x = v;
return is;
}
ostream &operator<<(ostream &os, i128 x) {
os << (i64)x;
return os;
}
istream &operator>>(istream &is, u128 &x) {
u64 v;
is >> v;
x = v;
return is;
}
ostream &operator<<(ostream &os, u128 x) {
os << (u64)x;
return os;
}
#endif
[[maybe_unused]] constexpr i32 INF = 1000000100;
[[maybe_unused]] constexpr i64 INF64 = 3000000000000000100;
struct SetUpIO {
SetUpIO() {
#ifdef FAST_IO
ios::sync_with_stdio(false);
cin.tie(nullptr);
#endif
cout << fixed << setprecision(15);
}
} set_up_io;
// ============
#ifdef DEBUGF
#else
#define DBG(x) (void)0
#endif
i64 solve(i32 n, i32 m, i32 k, Vec<i64> a) {
const auto enumerate = [&](const auto &enumerate, i32 dep) -> Vec<i64> {
if (dep == 0) {
Vec<i64> ret;
ret.push_back(0);
return ret;
}
Vec<i64> ret;
Vec<i64> sub = enumerate(enumerate, dep - 1);
REP(i, n) for (i64 ele : sub) {
ret.push_back(a[i] + ele);
}
return ret;
};
Vec<i64> l = enumerate(enumerate, k / 2), r = enumerate(enumerate, k - k / 2);
sort(ALL(l));
sort(ALL(r));
DBG(l);
DBG(r);
i64 ans = 0;
for (i64 ele : l) {
if (ele <= m) {
auto it = upper_bound(ALL(r), m - ele);
if (it != r.begin()) chmax(ans, ele + *(--it));
}
}
DBG(ans);
return ans;
}
int main() {
i32 n, m, k;
cin >> n >> m >> k;
Vec<i64> a(n);
REP(i, n) {
cin >> a[i];
}
i64 ans = 0;
REP(i, k + 1) {
chmax(ans, solve(n, m, i, a));
}
cout << ans << '\n';
}
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