* 核心功能：每次调用next(val)，返回当前价格的跨度（往回数≤当前价格的最大连续天数）
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Like the N-convex algorithm, this algorithm attempts to find a set of candidates whose centroid is close to . The key difference is that instead of taking unique candidates, we allow candidates to populate the set multiple times. The result is that the weight of each candidate is simply given by its frequency in the list, which we can then index by random selection:，详情可参考夫子
Last weekend GM Matthew Wadsworth emerged first on tie-break ahead of IM Tobias Koelle (Germany) and GM Matthew Turner (Scotland) after the trio all scored 7/9. Wadsworth also won in 2025.