This problem is in Contest(s) below:
Contest 1929:2024语言基础B-结营测试
Contest 1274:零基础终极考试
Contest 1981:期末考试
Contest 1524:零基础1班测试——收官之战
Contest 1162:2班收官之战——小傻同学的快乐生活
Contest 1753:2023零基础假期练习（循环练习)