string s[MAXN]; int tot(0); while( cin >> s[tot] ) ++tot; int c = rand() % tot + 1; cout << "本期幸运牛友： @"<< s[c] << endl; cout << "牛币奖励已发放至账户，请注意查收~" << endl; cout << "-------------------------" << endl; cout << "每日话题已更新！" << endl; cout << "欢迎大家踊跃参与~~" << endl; cout << "传送门：" << endl; cout << "<a href=\"https://ac.nowcoder.com/discuss/253100\"><\\a>" << endl;