結果
問題 | No.1323 うしらずSwap |
ユーザー | ei1333333 |
提出日時 | 2020-12-04 16:18:21 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,524 bytes |
コンパイル時間 | 2,756 ms |
コンパイル使用メモリ | 221,228 KB |
実行使用メモリ | 135,420 KB |
最終ジャッジ日時 | 2024-09-21 10:37:40 |
合計ジャッジ時間 | 14,444 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | WA | - |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | WA | - |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | WA | - |
testcase_16 | AC | 112 ms
61,568 KB |
testcase_17 | AC | 150 ms
61,440 KB |
testcase_18 | AC | 113 ms
61,568 KB |
testcase_19 | AC | 149 ms
61,952 KB |
testcase_20 | AC | 111 ms
61,568 KB |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | AC | 263 ms
133,356 KB |
testcase_27 | AC | 251 ms
135,420 KB |
testcase_28 | AC | 136 ms
61,568 KB |
testcase_29 | AC | 254 ms
131,392 KB |
testcase_30 | AC | 329 ms
131,096 KB |
testcase_31 | AC | 255 ms
131,056 KB |
testcase_32 | WA | - |
testcase_33 | AC | 195 ms
61,312 KB |
testcase_34 | AC | 196 ms
61,312 KB |
testcase_35 | AC | 200 ms
61,440 KB |
testcase_36 | AC | 194 ms
61,952 KB |
testcase_37 | AC | 195 ms
61,568 KB |
testcase_38 | AC | 199 ms
61,312 KB |
testcase_39 | AC | 202 ms
61,312 KB |
testcase_40 | AC | 205 ms
61,568 KB |
testcase_41 | AC | 202 ms
61,952 KB |
testcase_42 | AC | 196 ms
61,568 KB |
testcase_43 | AC | 104 ms
61,696 KB |
testcase_44 | AC | 130 ms
61,568 KB |
testcase_45 | AC | 122 ms
61,952 KB |
testcase_46 | AC | 129 ms
61,440 KB |
testcase_47 | AC | 111 ms
61,568 KB |
testcase_48 | WA | - |
testcase_49 | WA | - |
testcase_50 | WA | - |
testcase_51 | WA | - |
testcase_52 | WA | - |
testcase_53 | WA | - |
testcase_54 | WA | - |
testcase_55 | WA | - |
testcase_56 | WA | - |
testcase_57 | WA | - |
testcase_58 | WA | - |
testcase_59 | AC | 5 ms
5,376 KB |
testcase_60 | AC | 3 ms
5,376 KB |
testcase_61 | AC | 2 ms
5,376 KB |
ソースコード
// うしっちの 想定解が バグだらけ // @beet_aizu #include <bits/stdc++.h> using namespace std; const int inf = (1 << 30) - 1; struct Info { vector< vector< int > > min_cost; vector< vector< int > > way; vector< vector< pair< int, int > > > from; }; const int vy[] = {-1, 0, 1, 0}; const int vx[] = {0, -1, 0, 1}; Info bfs(vector< string > &S, int SY, int SX, int DY = -1, int DX = -1) { int H = (int) S.size(); int W = (int) S[0].size(); queue< pair< int, int > > que; vector< vector< int > > min_cost(H, vector< int >(W, -1)); auto way = min_cost; vector< vector< pair< int, int > > > from(H, vector< pair< int, int > >(W, make_pair(-1, -1))); min_cost[SY][SX] = 0; way[SY][SX] = 1; que.emplace(SY, SX); while(!que.empty()) { auto p = que.front(); que.pop(); for(int k = 0; k < 4; k++) { int ny = p.first + vy[k]; int nx = p.second + vx[k]; if(ny < 0 || nx < 0 || ny >= H || nx >= W || S[ny][nx] == '#') continue; if(p.first == SY && p.second == SX && ny == DY && nx == DX) continue; if(min_cost[ny][nx] != -1) { if(min_cost[p.first][p.second] + 1 == min_cost[ny][nx]) { way[ny][nx] = min(2, way[ny][nx] + way[p.first][p.second]); } continue; } min_cost[ny][nx] = min_cost[p.first][p.second] + 1; way[ny][nx] = way[p.first][p.second]; from[ny][nx] = {p.first, p.second}; que.emplace(ny, nx); } } return (Info) {min_cost, way, from}; } int main() { int H, W, AY, AX, BY, BX; cin >> H >> W >> AY >> AX >> BY >> BX; vector< string > S(H); for(auto &s : S) cin >> s; --AY, --AX, --BY, --BX; Info beet = bfs(S, AY, AX); auto way = beet.way; auto min_cost = beet.min_cost; auto from = beet.from; if(way[BY][BX] == -1) { cout << -1 << endl; return 0; } if(way[BY][BX] == 2) { cout << min_cost[BY][BX] * 2 << endl; return 0; } vector< pair< int, int > > path; int cy = BY, cx = BX; while(cy != -1) { path.emplace_back(cy, cx); tie(cy, cx) = from[cy][cx]; } for(auto &p : path) { S[p.first][p.second] = '#'; } for(int i = 1; i + 1 < path.size(); i++) { auto &p = path[i]; for(int j = 0; j < 4; j++) { int ny = p.first + vy[j]; int nx = p.second + vx[j]; if(ny < 0 || nx < 0 || ny >= H || nx >= W || S[ny][nx] == '#') continue; if(S[ny][nx] == '.') { cout << min_cost[BY][BX] * 2 + 2 << endl; return 0; } } } auto tap = bfs(S, AY, AX).min_cost; auto ris = bfs(S, BY, BX).min_cost; int ret = inf; for(int i = 0; i < H; i++) { for(int j = 0; j < W; j++) { int near = 0; for(int k = 0; k < 4; k++) { int ny = i + vy[k]; int nx = j + vx[k]; bool luz = (AY == ny && AX == nx) || (BY == ny && BX == nx); if(luz) { ++near; continue; } if(ny < 0 || nx < 0 || ny >= H || nx >= W || S[ny][nx] == '#') continue; near++; } bool luz = (AY == i && AX == j) || (BY == i && BX == j); if(near >= 3 - luz) { if(tap[i][j] != -1) { ret = min(ret, min_cost[BY][BX] * 2 + tap[i][j] * 4 + 4); } if(ris[i][j] != -1) { ret = min(ret, min_cost[BY][BX] * 2 + ris[i][j] * 4 + 4); } } } } S[BY][BX] = '.'; auto nene = bfs(S, AY, AX, BY, BX).min_cost[BY][BX]; if(nene != -1) ret = min(ret, min_cost[BY][BX] + nene); if(ret >= inf) cout << -1 << endl; else cout << ret << endl; }