优势：前期大步长让元素快速移动到大致位置，后期小步长精细调整
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The solution to today's Connections: Sports Edition #521 is...
// 核心逻辑：维护单调递增栈，仅当k0时移除高位大数
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Vegetarians have ‘substantially lower risk’ of five types of cancer
· 吴鹏 · 来源：tutorial资讯