Vigloo has a conveyor belt-like setup where the screenwriter, director and editor focus only on their job before passing it onto the next person. Each of Vigloo's 20 in-house filmmakers are asked to deliver 10 titles a year.
The workers described being threatened and beaten, having their passports withheld, and being forced to work long hours in unsanitary conditions.
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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。
Excessive ceremony for common operations