結果
問題 |
No.2366 登校
|
ユーザー |
![]() |
提出日時 | 2025-06-12 18:11:52 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,021 bytes |
コンパイル時間 | 181 ms |
コンパイル使用メモリ | 82,060 KB |
実行使用メモリ | 157,024 KB |
最終ジャッジ日時 | 2025-06-12 18:13:29 |
合計ジャッジ時間 | 6,163 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 17 WA * 8 |
ソースコード
import heapq def main(): import sys input = sys.stdin.read().split() idx = 0 N = int(input[idx]); idx +=1 M = int(input[idx]); idx +=1 K = int(input[idx]); idx +=1 T = int(input[idx]); idx +=1 magic = {} for _ in range(K): A = int(input[idx]); idx +=1 B = int(input[idx]); idx +=1 C = int(input[idx]); idx +=1 D = int(input[idx]); idx +=1 magic[(A, B)] = (C, D) S = (N-1) + (M-1) if S <= T: print(0) return # Initialize distance structure dist = [ [{} for _ in range(M+1)] for _ in range(N+1) ] heap = [] heapq.heappush(heap, (0, 1, 1, 0)) dist[1][1][0] = 0 while heap: f, i, j, t = heapq.heappop(heap) if i == N and j == M and t <= T: print(f) return if t > T: continue # Check if current state is outdated current = dist[i][j].get(t, None) if current is not None and current < f: continue # Move to adjacent cells directions = [(-1,0), (1,0), (0,-1), (0,1)] for di, dj in directions: ni = i + di nj = j + dj if 1 <= ni <= N and 1 <= nj <= M: new_t = t + 1 if new_t > T: continue if new_t not in dist[ni][nj] or f < dist[ni][nj].get(new_t, float('inf')): dist[ni][nj][new_t] = f heapq.heappush(heap, (f, ni, nj, new_t)) # Use magic cell if current cell is magic if (i, j) in magic: C, D = magic[(i, j)] new_t = t + 2 - C new_f = f + D if new_t > T: continue if new_t not in dist[i][j] or new_f < dist[i][j].get(new_t, float('inf')): dist[i][j][new_t] = new_f heapq.heappush(heap, (new_f, i, j, new_t)) print(-1) if __name__ == "__main__": main()