結果
問題 | No.1638 Robot Maze |
ユーザー |
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提出日時 | 2025-03-31 17:33:31 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 103 ms / 2,000 ms |
コード長 | 1,325 bytes |
コンパイル時間 | 136 ms |
コンパイル使用メモリ | 82,820 KB |
実行使用メモリ | 77,684 KB |
最終ジャッジ日時 | 2025-03-31 17:34:04 |
合計ジャッジ時間 | 4,691 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 49 |
ソースコード
import heapq h, w = map(int, input().split()) U, D, R, L, K, P = map(int, input().split()) x_s, y_s, x_t, y_t = map(int, input().split()) # Convert to 0-based indices x_s -= 1 y_s -= 1 x_t -= 1 y_t -= 1 grid = [] for _ in range(h): grid.append(list(input().strip())) # Directions: up, down, right, left dirs = [ (-1, 0, U), (1, 0, D), (0, 1, R), (0, -1, L) ] INF = float('inf') distance = [[INF for _ in range(w)] for __ in range(h)] distance[x_s][y_s] = 0 heap = [] heapq.heappush(heap, (0, x_s, y_s)) found = False while heap: cost, i, j = heapq.heappop(heap) if i == x_t and j == y_t: if cost <= K: print("Yes") found = True break continue if cost > distance[i][j]: continue for dx, dy, dir_cost in dirs: ni = i + dx nj = j + dy if 0 <= ni < h and 0 <= nj < w: cell = grid[ni][nj] if cell == '#': continue added_cost = dir_cost if cell == '@': added_cost += P new_cost = cost + added_cost if new_cost > K: continue if new_cost < distance[ni][nj]: distance[ni][nj] = new_cost heapq.heappush(heap, (new_cost, ni, nj)) if not found: print("No")