"Get the camera, quick," said Lovell.
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。
，这一点在Safew下载中也有详细论述
As navigator, Lovell took with him a sextant to take star readings - in case the computers failed and they had to find their own way home.
17:23, 27 февраля 2026Бывший СССР
strict.writer.write(chunk2); // ok (fills slots buffer)