結果

問題 No.3764 Graduation Live
コンテスト
ユーザー ei13333333
提出日時 2026-10-08 00:01:53
言語 C++23(gcc16)
(gcc 16.1.0 + boost 1.92.0 + ACL)
コンパイル:
g++-16 -O2 -lm -std=c++23 -Wuninitialized -DONLINE_JUDGE -o a.out _filename_
実行:
./a.out
結果
WA  
実行時間 -
コード長 3,394 bytes
記録
記録タグの例:
初AC ショートコード 純ショートコード 純主流ショートコード 最速実行時間
コンパイル時間 2,805 ms
コンパイル使用メモリ 367,076 KB
実行使用メモリ 13,460 KB
最終ジャッジ日時 2026-10-09 20:55:02
合計ジャッジ時間 49,618 ms
ジャッジサーバーID
（参考情報） 		judge4_0 / judge1_0
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 32 WA * 10 TLE * 3
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 #
raw source code 

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

// One-shot experiment: defer a duet when an unchosen, higher-scoring solo
// for either participant is available in the same state.
constexpr int SMALL_BEAM_WIDTH = 128;
constexpr int LARGE_BEAM_WIDTH = 18;
constexpr int PERSON[6][2] = {{0, -1}, {1, -1}, {2, -1},
                               {0, 1}, {0, 2}, {1, 2}};

using Key = unsigned __int128;
constexpr int BITS = 19;  // Each count is at most N_MAX = 300000.
constexpr Key MASK = (Key(1) << BITS) - 1;
int count_at(Key key, int t) { return int((key >> (BITS * (5 - t))) & MASK); }
struct CountHash {
  size_t operator()(Key key) const {
    uint64_t lo = uint64_t(key), hi = uint64_t(key >> 64);
    uint64_t x = lo ^ (hi + 0x9e3779b97f4a7c15ULL + (lo << 6) + (lo >> 2));
    x ^= x >> 30;
    x *= 0xbf58476d1ce4e5b9ULL;
    x ^= x >> 27;
    x *= 0x94d049bb133111ebULL;
    return size_t(x ^ (x >> 31));
  }
};

struct State {
  Key count = 0;
  ll score = 0;
};

void solve() {
  int n;
  array<int, 3> stamina;
  cin >> n >> stamina[0] >> stamina[1] >> stamina[2];
  const int beam_width = n >= 10000 ? LARGE_BEAM_WIDTH : SMALL_BEAM_WIDTH;
  array<vector<ll>, 6> value;
  for (int i = 0; i < n; ++i) {
    int type;
    ll score;
    cin >> type >> score;
    value[type - 1].push_back(score);
  }
  for (auto &a : value) sort(a.rbegin(), a.rend());

  vector<State> beam(1);
  vector<ll> answer;
  for (int depth = 1; depth <= n; ++depth) {
    vector<State> candidates;
    candidates.reserve(beam.size() * 6);
    for (const State &s : beam) {
      int c[6];
      for (int t = 0; t < 6; ++t) c[t] = count_at(s.count, t);
      int used[3] = {c[0] + c[3] + c[4], c[1] + c[3] + c[5],
                     c[2] + c[4] + c[5]};
      for (int t = 0; t < 6; ++t) {
        if (c[t] == (int)value[t].size()) continue;
        int a = PERSON[t][0], b = PERSON[t][1];
        if (used[a] == stamina[a] ||
            (b != -1 && used[b] == stamina[b])) continue;
        if (b != -1) {
          ll duet = value[t][c[t]];
          if ((c[a] < (int)value[a].size() &&
               value[a][c[a]] > duet) ||
              (c[b] < (int)value[b].size() &&
               value[b][c[b]] > duet)) continue;
        }
        State next = s;
        next.score += value[t][c[t]];
        next.count += Key(1) << (BITS * (5 - t));
        candidates.push_back(next);
      }
    }
    if (candidates.empty()) break;

    unordered_set<Key, CountHash> seen;
    seen.reserve(candidates.size());
    vector<State> distinct;
    distinct.reserve(candidates.size());
    for (const State &s : candidates) {
      if (seen.insert(s.count).second) distinct.push_back(s);
    }
    candidates = move(distinct);
    const int keep = min<int>(beam_width, candidates.size());
    partial_sort(candidates.begin(), candidates.begin() + keep, candidates.end(),
                 [](const State &a, const State &b) {
                   if (a.score != b.score) return a.score > b.score;
                   return a.count < b.count;
                 });
    candidates.resize(keep);
    answer.push_back(candidates.front().score);
    beam = move(candidates);
  }
  cout << answer.size();
  for (ll x : answer) cout << ' ' << x;
  cout << '\n';
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int test_cases;
  cin >> test_cases;
  while (test_cases--) solve();
}
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