結果

問題 No.5004 Room Assignment
ユーザー simansiman
提出日時 2021-12-01 04:47:28
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 154 ms / 5,000 ms
コード長 3,221 bytes
コンパイル時間 1,549 ms
実行使用メモリ 22,380 KB
スコア 137,681,296
平均クエリ数 7643.20
最終ジャッジ日時 2021-12-01 04:47:50
合計ジャッジ時間 20,924 ms
ジャッジサーバーID
(参考情報)
judge14 / judge12
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 136 ms
21,924 KB
testcase_01 AC 138 ms
21,936 KB
testcase_02 AC 139 ms
21,912 KB
testcase_03 AC 137 ms
22,152 KB
testcase_04 AC 138 ms
22,212 KB
testcase_05 AC 146 ms
21,948 KB
testcase_06 AC 147 ms
21,960 KB
testcase_07 AC 137 ms
21,780 KB
testcase_08 AC 136 ms
22,152 KB
testcase_09 AC 136 ms
21,792 KB
testcase_10 AC 136 ms
22,032 KB
testcase_11 AC 136 ms
21,768 KB
testcase_12 AC 136 ms
21,804 KB
testcase_13 AC 135 ms
21,960 KB
testcase_14 AC 135 ms
21,936 KB
testcase_15 AC 146 ms
22,200 KB
testcase_16 AC 138 ms
21,984 KB
testcase_17 AC 138 ms
21,896 KB
testcase_18 AC 135 ms
21,780 KB
testcase_19 AC 138 ms
21,900 KB
testcase_20 AC 136 ms
22,016 KB
testcase_21 AC 136 ms
22,152 KB
testcase_22 AC 138 ms
21,948 KB
testcase_23 AC 134 ms
21,804 KB
testcase_24 AC 154 ms
21,936 KB
testcase_25 AC 134 ms
21,912 KB
testcase_26 AC 134 ms
21,924 KB
testcase_27 AC 135 ms
21,972 KB
testcase_28 AC 134 ms
21,792 KB
testcase_29 AC 134 ms
21,908 KB
testcase_30 AC 134 ms
21,936 KB
testcase_31 AC 135 ms
21,780 KB
testcase_32 AC 135 ms
21,960 KB
testcase_33 AC 154 ms
21,792 KB
testcase_34 AC 143 ms
21,936 KB
testcase_35 AC 140 ms
22,148 KB
testcase_36 AC 138 ms
22,116 KB
testcase_37 AC 136 ms
21,972 KB
testcase_38 AC 134 ms
21,948 KB
testcase_39 AC 136 ms
21,792 KB
testcase_40 AC 136 ms
21,936 KB
testcase_41 AC 137 ms
22,176 KB
testcase_42 AC 148 ms
22,152 KB
testcase_43 AC 137 ms
21,984 KB
testcase_44 AC 135 ms
22,152 KB
testcase_45 AC 134 ms
21,996 KB
testcase_46 AC 139 ms
22,368 KB
testcase_47 AC 140 ms
21,912 KB
testcase_48 AC 135 ms
21,948 KB
testcase_49 AC 135 ms
21,936 KB
testcase_50 AC 135 ms
21,948 KB
testcase_51 AC 150 ms
22,152 KB
testcase_52 AC 146 ms
21,936 KB
testcase_53 AC 136 ms
21,984 KB
testcase_54 AC 137 ms
21,936 KB
testcase_55 AC 134 ms
21,792 KB
testcase_56 AC 134 ms
21,948 KB
testcase_57 AC 136 ms
21,900 KB
testcase_58 AC 135 ms
21,900 KB
testcase_59 AC 135 ms
22,104 KB
testcase_60 AC 143 ms
21,984 KB
testcase_61 AC 145 ms
21,792 KB
testcase_62 AC 135 ms
22,032 KB
testcase_63 AC 137 ms
21,924 KB
testcase_64 AC 137 ms
22,152 KB
testcase_65 AC 138 ms
21,792 KB
testcase_66 AC 135 ms
21,804 KB
testcase_67 AC 138 ms
21,972 KB
testcase_68 AC 137 ms
21,792 KB
testcase_69 AC 135 ms
22,380 KB
testcase_70 AC 146 ms
21,936 KB
testcase_71 AC 138 ms
21,936 KB
testcase_72 AC 137 ms
21,888 KB
testcase_73 AC 136 ms
21,960 KB
testcase_74 AC 136 ms
22,128 KB
testcase_75 AC 134 ms
22,044 KB
testcase_76 AC 134 ms
21,792 KB
testcase_77 AC 134 ms
21,912 KB
testcase_78 AC 136 ms
21,960 KB
testcase_79 AC 145 ms
21,960 KB
testcase_80 AC 141 ms
22,356 KB
testcase_81 AC 135 ms
21,924 KB
testcase_82 AC 135 ms
21,936 KB
testcase_83 AC 135 ms
22,128 KB
testcase_84 AC 133 ms
21,900 KB
testcase_85 AC 136 ms
21,912 KB
testcase_86 AC 136 ms
22,088 KB
testcase_87 AC 138 ms
21,984 KB
testcase_88 AC 145 ms
21,912 KB
testcase_89 AC 143 ms
21,912 KB
testcase_90 AC 140 ms
21,780 KB
testcase_91 AC 140 ms
21,780 KB
testcase_92 AC 139 ms
21,912 KB
testcase_93 AC 133 ms
22,020 KB
testcase_94 AC 136 ms
22,152 KB
testcase_95 AC 137 ms
22,080 KB
testcase_96 AC 137 ms
21,780 KB
testcase_97 AC 147 ms
22,224 KB
testcase_98 AC 145 ms
22,140 KB
testcase_99 AC 136 ms
22,092 KB
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 #

#include <cassert>
#include <cmath>
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <climits>
#include <map>
#include <queue>
#include <set>
#include <cstring>
#include <vector>

using namespace std;
typedef long long ll;

class UnionFind {
public:
  vector<int> parent;
  vector<int> _size;

  UnionFind(int n) {
    for (int i = 0; i < n; ++i) {
      parent.push_back(i);
      _size.push_back(1);
    }
  }

  int find(int x) {
    if (parent[x] == x) {
      return x;
    } else {
      return parent[x] = find(parent[x]);
    }
  }

  void unite(int x, int y) {
    x = find(x);
    y = find(y);
    if (x == y) return;

    if (x > y) {
      parent[x] = y;
      _size[y] += _size[x];
    } else {
      parent[y] = x;
      _size[x] += _size[y];
    }
  }

  bool same(int x, int y) {
    return find(x) == find(y);
  }

  int size(int x) {
    return _size[find(x)];
  }
};

int T, R;

struct Command {
  int u;
  int v;

  Command(int u = -1, int v = -1) {
    this->u = u;
    this->v = v;
  }

  string to_str() {
    return to_string(u) + " " + to_string(v);
  }
};

class Adv2021 {
public:
  void run() {
    int N;
    int id = 1;
    int counter[101];
    memset(counter, 0, sizeof(counter));
    vector<int> started_at(5555, 9999);
    vector<int> skills[101];
    UnionFind uf(5555);
    vector<int> power(5555, 0);

    for (int t = 0; t < T; ++t) {
      cin >> N;
      vector<int> S(N);
      vector <Command> commands;

      for (int i = 0; i < N; ++i) {
        int s;
        cin >> s;
        S[i] = s;
        power[id] = s;
        skills[s].push_back(id);
        started_at[id] = t;
        int u = skills[s].back();
        int diff = 2;
        if (abs(s - 50) >= 25) diff = 3;
        if (abs(s - 50) >= 40) diff = 5;
        int max_time = -1;
        int min_time = 9999;
        int best_v = -1;

        for (int ns = max(0, s - diff); ns <= min(100, s + diff); ++ns) {
          if (skills[ns].empty()) continue;

          for (int v : skills[ns]) {
            int size = uf.size(u) + uf.size(v);
            int time = t - started_at[v];

            if (not uf.same(u, v) && size <= R && max_time < time) {
              max_time = time;
              best_v = v;
            }
          }
        }

        if (best_v != -1) {
          uf.unite(u, best_v);
          started_at[uf.find(u)] = min(started_at[u], started_at[best_v]);
          started_at[uf.find(best_v)] = min(started_at[u], started_at[best_v]);
          commands.push_back(Command(u, best_v));
        }

        counter[s]++;
        id++;
      }

      cout << commands.size() << endl;
      for (Command &cmd : commands) {
        cout << cmd.to_str() << endl;
      }
      cout << flush;
    }

    vector<bool> checked(5555, false);

    for (int i = 1; i < id; ++i) {
      int p = uf.find(i);
      if (checked[p]) continue;
      if (uf.size(p) == R) continue;
      checked[p] = true;

      fprintf(stderr, "x: %d, size: %d, st: %d\n", power[p], uf.size(p), started_at[p]);
    }

    for (int x = 0; x <= 100; ++x) {
      // fprintf(stderr, "x: %d, cnt: %d\n", x, counter[x]);
    }
  }
};

int main() {
  cin >> T >> R;

  Adv2021 solver;
  solver.run();

  return 0;
}
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