結果
問題 |
No.506 限られたジャパリまん
|
ユーザー |
![]() |
提出日時 | 2025-06-12 19:47:40 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,623 bytes |
コンパイル時間 | 151 ms |
コンパイル使用メモリ | 82,716 KB |
実行使用メモリ | 77,052 KB |
最終ジャッジ日時 | 2025-06-12 19:47:47 |
合計ジャッジ時間 | 6,231 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
other | AC * 2 WA * 23 |
ソースコード
MOD = 10**9 + 7 H, W, K, P = map(int, input().split()) friends = [] for _ in range(K): x, y, name = input().split() x = int(x) y = int(y) friends.append((x, y, name)) # Precompute the grid: each cell has the friend index or -1 grid = [[-1 for _ in range(W + 1)] for __ in range(H + 1)] for idx in range(K): x, y, name = friends[idx] grid[x][y] = idx max_paths = 0 best_mask = None for mask in range(0, 1 << K): s = bin(mask).count('1') if s > P: continue # Initialize DP table dp = [[0] * (W + 1) for _ in range(H + 1)] dp[0][0] = 1 for i in range(H + 1): for j in range(W + 1): if i == 0 and j == 0: continue # Check if the cell is blocked if grid[i][j] != -1: friend_idx = grid[i][j] if (mask & (1 << friend_idx)) == 0: dp[i][j] = 0 continue # Calculate the number of paths sum_val = 0 if i > 0: sum_val += dp[i-1][j] if j > 0: sum_val += dp[i][j-1] dp[i][j] = sum_val % MOD current = dp[H][W] if current > max_paths: max_paths = current best_mask = mask if max_paths == 0: print(0) else: print(max_paths % MOD) # Collect the names in the order of their occurrence in the input output = [] for idx in range(K): if (best_mask & (1 << idx)) != 0: output.append(friends[idx][2]) for name in output: print(name) print()