"discountValue": 100
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。
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As of Feb. 26, you can get a great deal on the Eufy Omni C20 at Amazon. It vacuums, it mops, and better yet, it's reduced by $250. This brings the price down to $349.98, its lowest price of 2026.
，这一点在51吃瓜中也有详细论述
Stack allocation of append-allocated slices
除了人群拓展，场景机会将是另一思路。，详情可参考旺商聊官方下载