結果

問題 No.2686 商品券の使い道
ユーザー pitP
提出日時 2024-03-21 00:33:55
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 321 ms / 3,000 ms
コード長 2,590 bytes
コンパイル時間 4,300 ms
コンパイル使用メモリ 251,848 KB
最終ジャッジ日時 2025-02-20 10:19:32
ジャッジサーバーID
(参考情報)
judge5 / judge2
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 * 2
other AC * 48
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

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); }
istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); }
istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); }
typedef long long ll;
typedef vector<vector<int>> Graph;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define FOR(i,l,r) for (int i = l;i < (int)(r); i++)
#define rep(i,n) for (int i = 0;i < (int)(n); i++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define my_sort(x) sort(x.begin(), x.end())
#define my_max(x) *max_element(all(x))
#define my_min(x) *min_element(all(x))
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const int INF = (1<<30) - 1;
const ll LINF = (1LL<<60) - 1;
const int MOD = 998244353;
const int MOD2 = 1e9+7;
const double PI = acos(-1);
vector<int> di = {1,0,-1,0};
vector<int> dj = {0,1,0,-1};
#ifdef LOCAL
# include <debug_print.hpp>
# define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
# define debug(...) (static_cast<void>(0))
#endif
int main(){
cin.tie(0);
ios_base::sync_with_stdio(false);
int N; cin >> N;
int L = 1 << N;
int mask = L - 1;
ll M, Q; cin >> M >> Q;
vector<ll> A(N), B(N);
rep(i,N) cin >> A[i] >> B[i];
// dp1[S] ... S1
vector<ll> dp1(L);
rep(s,L){
ll acc_a = 0, acc_b = 0;
rep(bit,N)if((s>>bit)&1){
acc_a += A[bit];
acc_b += B[bit];
}
if(acc_a <= M) dp1[s] = acc_b;
}
rep(s,L)rep(bit,N)if((~s>>bit)&1)chmax(dp1[s|(1<<bit)], dp1[s]);
// dp2[S] ... S2
vector<ll> dp2(L);
rep(s,L){
ll acc_a = 0, acc_b = 0;
rep(bit,N)if((s>>bit)&1){
acc_a += A[bit];
acc_b += B[bit];
}
if(acc_a <= Q) dp2[s] = acc_b;
}
rep(s,L)rep(bit,N)if((~s>>bit)&1)chmax(dp2[s|(1<<bit)], dp2[s]);
ll ans = 0;
rep(s,L)chmax(ans, dp1[s] + dp2[mask ^ s]);
cout << ans << endl;
}
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