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 |  gew1fw | 
| 提出日時 | 2025-06-12 14:47:36 | 
| 言語 | PyPy3 (7.3.15) | 
| 結果 | 
                                WA
                                 
                             | 
| 実行時間 | - | 
| コード長 | 1,927 bytes | 
| コンパイル時間 | 192 ms | 
| コンパイル使用メモリ | 82,292 KB | 
| 実行使用メモリ | 76,916 KB | 
| 最終ジャッジ日時 | 2025-06-12 14:50:43 | 
| 合計ジャッジ時間 | 2,706 ms | 
| ジャッジサーバーID (参考情報) | judge3 / judge5 | 
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| ファイルパターン | 結果 | 
|---|---|
| other | AC * 2 WA * 23 | 
ソースコード
import sys
from itertools import combinations
MOD = 10**9 + 7
def main():
    H, W, K, P = map(int, sys.stdin.readline().split())
    friends = []
    grid = dict()  # Maps (x,y) to friend index
    for idx in range(K):
        x, y, name = sys.stdin.readline().split()
        x = int(x)
        y = int(y)
        friends.append((x, y, name, idx))
        grid[(x, y)] = idx
    max_paths = -1
    best_subset = None
    # Iterate through all possible subsets of size P
    for subset in combinations(range(K), P):
        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
                total = 0
                if i > 0:
                    total += dp[i-1][j]
                if j > 0:
                    total += dp[i][j-1]
                # Check if current cell is a friend's position
                if (i, j) in grid:
                    friend_idx = grid[(i, j)]
                    if friend_idx not in subset:
                        # Blocked, so no path through here
                        dp[i][j] = 0
                    else:
                        dp[i][j] = total % MOD
                else:
                    dp[i][j] = total % MOD
        current_paths = dp[H][W]
        if current_paths > max_paths:
            max_paths = current_paths
            best_subset = subset
    if max_paths == 0 or max_paths == -1:
        print(0)
    else:
        print(max_paths % MOD)
        if best_subset is not None:
            # Output the names in the order of their appearance in the input
            sorted_subset = sorted(best_subset)
            for idx in sorted_subset:
                print(friends[idx][2])
            print()  # Ensure a newline at the end
if __name__ == "__main__":
    main()
            
            
            
        