結果
問題 | No.5006 Hidden Maze |
ユーザー | trineutron |
提出日時 | 2022-06-12 17:59:03 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 141 ms / 2,000 ms |
コード長 | 3,060 bytes |
コンパイル時間 | 2,612 ms |
実行使用メモリ | 22,704 KB |
スコア | 87,113 |
平均クエリ数 | 129.87 |
最終ジャッジ日時 | 2022-06-12 18:00:24 |
合計ジャッジ時間 | 10,603 ms |
ジャッジサーバーID (参考情報) |
judge15 / judge12 |
純コード判定しない問題か言語 |
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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 | 21 ms
21,588 KB |
testcase_01 | AC | 29 ms
21,928 KB |
testcase_02 | AC | 22 ms
21,940 KB |
testcase_03 | AC | 26 ms
22,216 KB |
testcase_04 | AC | 25 ms
22,576 KB |
testcase_05 | AC | 29 ms
21,992 KB |
testcase_06 | AC | 24 ms
22,016 KB |
testcase_07 | AC | 34 ms
21,904 KB |
testcase_08 | AC | 57 ms
21,940 KB |
testcase_09 | AC | 33 ms
21,780 KB |
testcase_10 | AC | 25 ms
22,240 KB |
testcase_11 | AC | 26 ms
22,444 KB |
testcase_12 | AC | 28 ms
21,992 KB |
testcase_13 | AC | 29 ms
22,624 KB |
testcase_14 | AC | 27 ms
21,940 KB |
testcase_15 | AC | 28 ms
22,552 KB |
testcase_16 | AC | 24 ms
21,940 KB |
testcase_17 | AC | 20 ms
21,992 KB |
testcase_18 | AC | 41 ms
21,928 KB |
testcase_19 | AC | 21 ms
22,624 KB |
testcase_20 | AC | 21 ms
21,952 KB |
testcase_21 | AC | 24 ms
21,992 KB |
testcase_22 | AC | 26 ms
22,588 KB |
testcase_23 | AC | 32 ms
21,904 KB |
testcase_24 | AC | 44 ms
21,880 KB |
testcase_25 | AC | 22 ms
22,004 KB |
testcase_26 | AC | 141 ms
21,768 KB |
testcase_27 | AC | 26 ms
22,564 KB |
testcase_28 | AC | 25 ms
21,992 KB |
testcase_29 | AC | 125 ms
22,548 KB |
testcase_30 | AC | 21 ms
22,588 KB |
testcase_31 | AC | 21 ms
21,892 KB |
testcase_32 | AC | 36 ms
22,468 KB |
testcase_33 | AC | 23 ms
22,432 KB |
testcase_34 | AC | 23 ms
22,240 KB |
testcase_35 | AC | 35 ms
22,396 KB |
testcase_36 | AC | 30 ms
22,588 KB |
testcase_37 | AC | 53 ms
22,516 KB |
testcase_38 | AC | 29 ms
21,940 KB |
testcase_39 | AC | 26 ms
21,892 KB |
testcase_40 | AC | 23 ms
22,444 KB |
testcase_41 | AC | 30 ms
22,620 KB |
testcase_42 | AC | 28 ms
22,456 KB |
testcase_43 | AC | 24 ms
22,480 KB |
testcase_44 | AC | 24 ms
21,780 KB |
testcase_45 | AC | 36 ms
22,588 KB |
testcase_46 | AC | 120 ms
22,016 KB |
testcase_47 | AC | 26 ms
21,768 KB |
testcase_48 | AC | 27 ms
21,992 KB |
testcase_49 | AC | 46 ms
22,004 KB |
testcase_50 | AC | 21 ms
21,892 KB |
testcase_51 | AC | 30 ms
21,904 KB |
testcase_52 | AC | 25 ms
21,756 KB |
testcase_53 | AC | 34 ms
21,952 KB |
testcase_54 | AC | 35 ms
21,896 KB |
testcase_55 | AC | 26 ms
22,240 KB |
testcase_56 | AC | 23 ms
22,612 KB |
testcase_57 | AC | 30 ms
22,456 KB |
testcase_58 | AC | 38 ms
22,444 KB |
testcase_59 | AC | 22 ms
21,940 KB |
testcase_60 | AC | 27 ms
22,456 KB |
testcase_61 | AC | 21 ms
22,264 KB |
testcase_62 | AC | 21 ms
22,444 KB |
testcase_63 | AC | 26 ms
22,288 KB |
testcase_64 | AC | 44 ms
21,916 KB |
testcase_65 | AC | 20 ms
21,904 KB |
testcase_66 | AC | 21 ms
21,780 KB |
testcase_67 | AC | 23 ms
21,768 KB |
testcase_68 | AC | 28 ms
21,940 KB |
testcase_69 | AC | 23 ms
21,768 KB |
testcase_70 | AC | 22 ms
21,952 KB |
testcase_71 | AC | 20 ms
21,916 KB |
testcase_72 | AC | 26 ms
21,892 KB |
testcase_73 | AC | 42 ms
22,004 KB |
testcase_74 | AC | 32 ms
22,004 KB |
testcase_75 | AC | 29 ms
21,768 KB |
testcase_76 | AC | 23 ms
21,928 KB |
testcase_77 | AC | 87 ms
21,768 KB |
testcase_78 | AC | 20 ms
21,928 KB |
testcase_79 | AC | 56 ms
21,804 KB |
testcase_80 | AC | 24 ms
22,228 KB |
testcase_81 | AC | 26 ms
22,576 KB |
testcase_82 | AC | 22 ms
21,940 KB |
testcase_83 | AC | 21 ms
22,704 KB |
testcase_84 | AC | 25 ms
22,600 KB |
testcase_85 | AC | 28 ms
21,904 KB |
testcase_86 | AC | 21 ms
21,880 KB |
testcase_87 | AC | 27 ms
22,588 KB |
testcase_88 | AC | 46 ms
21,600 KB |
testcase_89 | AC | 91 ms
22,612 KB |
testcase_90 | AC | 27 ms
22,004 KB |
testcase_91 | AC | 27 ms
22,264 KB |
testcase_92 | AC | 26 ms
21,896 KB |
testcase_93 | AC | 27 ms
22,276 KB |
testcase_94 | AC | 27 ms
21,892 KB |
testcase_95 | AC | 29 ms
21,892 KB |
testcase_96 | AC | 24 ms
21,892 KB |
testcase_97 | AC | 32 ms
22,620 KB |
testcase_98 | AC | 30 ms
21,600 KB |
testcase_99 | AC | 22 ms
21,940 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using edge = tuple<int64_t, int, int>; const vector<int> dx{1, 0, -1, 0, 1, 0, -1, 0}, dy{0, 1, 0, -1, 0, 1, 0, -1}; const string ds{'D', 'R', 'U', 'L', 'D', 'R', 'U', 'L'}; random_device rng; int h, w, p; bool in_board(int x, int y) { return 0 <= x and x < h and 0 <= y and y < w; } int main() { cin >> h >> w >> p; vector cost_h(h, vector<int64_t>(w - 1, 1000)); vector cost_v(h - 1, vector<int64_t>(w, 1000)); while (true) { vector dist(h, vector<int64_t>(w, 1e18)); priority_queue<edge, vector<edge>, greater<edge>> q; q.emplace(0, 0, 0); while (not q.empty()) { auto [d0, x0, y0]{q.top()}; q.pop(); if (d0 >= dist[x0][y0]) continue; dist[x0][y0] = d0; for (int i = 0; i < 4; i++) { int x = x0 + dx[i], y = y0 + dy[i]; if (not in_board(x, y)) continue; int64_t c; if (i % 2 == 0) { c = cost_v.at(x0 - i / 2).at(y0); } else { c = cost_h.at(x0).at(y0 - i / 2); } int64_t d = d0 + c; if (d >= dist[x][y]) continue; q.emplace(d, x, y); } } vector<int> dirs; string ans; int x0 = h - 1, y0 = w - 1; while (x0 or y0) { int d0 = dist[x0][y0]; vector<int> ok; for (int i = 0; i < 4; i++) { int x = x0 + dx[i], y = y0 + dy[i]; if (not in_board(x, y)) continue; int64_t c; if (i % 2 == 0) { c = cost_v[x0 - i / 2][y0]; } else { c = cost_h[x0][y0 - i / 2]; } int64_t d = d0 - c; if (d != dist[x][y]) continue; ok.emplace_back((i + 2) % 4); } int sz = ok.size(); int d = ok.at(rng() % sz); dirs.emplace_back(d); ans += ds[d]; x0 -= dx[d]; y0 -= dy[d]; } reverse(dirs.begin(), dirs.end()); reverse(ans.begin(), ans.end()); cout << ans << endl; int res; cin >> res; if (res == -1) { break; } for (int i = 0; i < res; i++) { int d = dirs[i]; int x = x0 + dx[d], y = y0 + dy[d]; if (d % 2 == 0) { cost_v[x0 - d / 2][y0] = 1; } else { cost_h[x0][y0 - d / 2] = 1; } x0 = x; y0 = y; } if (int(ans.size()) > res) { int d = dirs[res]; if (d % 2 == 0) { if (cost_v[x0 - d / 2][y0] == 1) continue; cost_v[x0 - d / 2][y0] += 10000; } else { if (cost_h[x0][y0 - d / 2] == 1) continue; cost_h[x0][y0 - d / 2] += 10000; } } } return 0; }