思路：倒序遍历 2 倍长度 + 取模模拟循环 + 单调栈。用 i % len 映射到真实索引，仅当 i < len 时记录答案。
朝鲜劳动党总书记金正恩在阅兵式上发表讲话说，朝鲜军队已为应对任何情况做好准备。对于任何侵犯国家主权和安全利益的军事敌对行为，朝方将立即进行报复性打击。。业内人士推荐safew官方版本下载作为进阶阅读
an in-depth look at your site's search traffic.，更多细节参见搜狗输入法2026
The so-called fit checks have begun at Ramsey Group Practice in the north of the island, as part of a project that could also help to shape future services.