为了让整机的手感更加温润，S26 Ultra 的机身 R 角被进一步打磨变圆。这个看似不起眼的改动，直接导致了位于机身左下角的 S-Pen 笔尾结构受限。这根陪伴了用户十年的手写笔，以后大概率再也无法翻面盲插了。
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。
。关于这个话题，51吃瓜提供了深入分析
The series of Command objects generated by the pipeline is then run by an interpreter using runEffect(checkoutFlow(cartSummary)). Because our business logic consists of pure functions that interact with the world only through data, we can record those interactions simply by adding a few hooks for services like OpenTelemetry. And if we can record them, we can replay them deterministically. Best of all, there’s no need to mock a single database or external service.
of the actual logic, and the ATM was a dumb terminal, just doing exactly what