@[Zpril](/user/581345)
` cin >> l >> r;`
by _sunkuangzheng_ @ 2023-12-01 17:27:16
@[_sunkuangzheng_](/user/923947) thx
by Zpril_20211017 @ 2023-12-01 17:29:58
没想到问题在这里（
by Zpril_20211017 @ 2023-12-01 17:30:15
感谢提醒
by Hugo_Von @ 2024-02-17 22:45:33