一窥 PAT 甲级的秘密：以题解题，从 '1093 Count PAT' 开始
1093 Count PAT’s (25分) The string APPAPT contains two PAT’s as substrings. The first one is formed by the 2nd, th
1月前130
1093 Count PAT’s (25分) The string APPAPT contains two PAT’s as substrings. The first one is formed by the 2nd, th