結果
| 問題 |
No.506 限られたジャパリまん
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-03-31 17:31:57 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,636 bytes |
| コンパイル時間 | 314 ms |
| コンパイル使用メモリ | 82,652 KB |
| 実行使用メモリ | 77,976 KB |
| 最終ジャッジ日時 | 2025-03-31 17:33:04 |
| 合計ジャッジ時間 | 12,508 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 12 WA * 13 |
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()
friends.append((int(x), int(y), name))
max_count = 0
best_mask = None
for mask in range(0, 1 << K):
# Check if the number of set bits is <= P
bit_count = bin(mask).count('1')
if bit_count > P:
continue
# Generate blocked cells (friends not in this mask)
blocked = set()
for idx in range(K):
if not (mask & (1 << idx)):
xf, yf, _ = friends[idx]
blocked.add((xf, yf))
# Initialize DP table
dp = [[0] * (W + 1) for _ in range(H + 1)]
dp[0][0] = 1 # Starting point
for i in range(H + 1):
for j in range(W + 1):
if i == 0 and j == 0:
continue # Already initialized
if (i, j) in blocked:
dp[i][j] = 0
continue
top = dp[i-1][j] if i > 0 else 0
left = dp[i][j-1] if j > 0 else 0
dp[i][j] = (top + left) % MOD
current_count = dp[H][W]
if current_count > max_count:
max_count = current_count
best_mask = mask
elif current_count == max_count and current_count != 0:
# According to problem statement, there is a unique maximum
# So this case won't occur for valid test cases
pass
if max_count == 0 or best_mask is None:
print(0)
else:
print(max_count % MOD)
# Collect the names in the order of input
selected_names = [friends[idx][2] for idx in range(K) if (best_mask & (1 << idx))]
for name in selected_names:
print(name)
lam6er