To find these crucial border points, we employed a clever technique based on the Ford-Fulkerson algorithm. By simulating "flooding" roads with traffic from random start/end points, we could identify the natural bottlenecks – the "minimum cut" in graph theory terms. These bottlenecks became our border points.
思路：链表转数组 + 单调栈（从后往前遍历）。与「下一个更大元素」模板一致，仅需将链表值先提取到数组。，推荐阅读WPS官方版本下载获取更多信息
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Сайт Роскомнадзора атаковали18:00
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Racism and discrimination occurs throughout the system, says the interim report.