結果

問題 No.1909 Detect from Substrings
ユーザー gew1fw
提出日時 2025-06-12 14:54:41
言語 PyPy3
(7.3.15)
結果
MLE  
実行時間 -
コード長 2,282 bytes
コンパイル時間 434 ms
コンパイル使用メモリ 82,584 KB
実行使用メモリ 848,136 KB
最終ジャッジ日時 2025-06-12 14:57:32
合計ジャッジ時間 5,470 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge5
このコードへのチャレンジ
（要ログイン）
ファイルパターン 結果
sample AC * 3
other AC * 5 MLE * 1 -- * 30
権限があれば一括ダウンロードができます

ソースコード

diff # 

def main():
    import sys
    input = sys.stdin.read().split()
    idx = 0
    N = int(input[idx])
    idx += 1
    M = int(input[idx])
    idx += 1
    S = []
    for _ in range(N):
        S.append(input[idx])
        idx += 1
    
    # Generate all possible T from S[0]
    s0 = S[0]
    generated = set()
    for pos in range(M + 1):
        for c in 'abcdefghijklmnopqrstuvwxyz':
            new_t = s0[:pos] + c + s0[pos:]
            generated.add(new_t)
    
    # Check each generated T against all S_i
    valid_count = 0
    for T in generated:
        valid = True
        for s in S:
            # Check if s is a deletion of T
            i = 0  # index for s
            j = 0  # index for T
            skipped = 0
            while i < M and j < M + 1:
                if s[i] == T[j]:
                    i += 1
                    j += 1
                else:
                    j += 1
                    skipped += 1
                    if skipped > 1:
                        break
            # After loop, check if we reached end of s and T with at most one skip
            if i == M:
                # Check remaining characters in T (if any)
                skipped += (M + 1 - j)
                if skipped <= 1:
                    continue
                else:
                    valid = False
                    break
            else:
                # Check if remaining characters in s can be matched by skipping one more
                while j < M + 1 and skipped <= 1:
                    if s[i] == T[j]:
                        i += 1
                        j += 1
                        if i == M:
                            break
                    else:
                        j += 1
                        skipped += 1
                if i == M and skipped <= 1:
                    # Check if there are remaining characters in T
                    skipped += (M + 1 - j)
                    if skipped <= 1:
                        continue
                    else:
                        valid = False
                        break
                else:
                    valid = False
                    break
        if valid:
            valid_count += 1
    print(valid_count)

if __name__ == "__main__":
    main()
0