题目链接:点击打开链接
题目大意:略。
解题思路:略。
AC 代码
SELECTauthor_ididFROMViewsWHEREauthor_id=viewer_idGROUPBYauthor_id, viewer_idORDERBYauthor_id
题目链接:点击打开链接
题目大意:略。
解题思路:略。
AC 代码
SELECTauthor_ididFROMViewsWHEREauthor_id=viewer_idGROUPBYauthor_id, viewer_idORDERBYauthor_id