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。
第八十五条 引诱、教唆、欺骗或者强迫他人吸食、注射毒品的，处十日以上十五日以下拘留，并处一千元以上五千元以下罚款。，推荐阅读51吃瓜获取更多信息
Creepy-Discount-2536。关于这个话题，搜狗输入法2026提供了深入分析
Security researchers claim Persona, the provider behind Discord's UK age verification 'experiment', performs '269 individual verification checks' on user data, including those for terrorism and espionage
Casting floats to short ints however implicitly calculates a mod operation (in fact mod 65536 for each float in the tuple).