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Update article link (#91)
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gi-b716 authored Dec 10, 2024
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## 2. 洛谷中的比赛等级分系统

洛谷采用了类似 AtCoder 的等级分计算方式,可参见 [https://www.luogu.com.cn/blog/ak-ioi/cf-at-rating](https://www.luogu.com.cn/blog/ak-ioi/cf-at-rating)
洛谷采用了类似 AtCoder 的等级分计算方式,可参见 [https://www.luogu.com.cn/article/jbekb3o8](https://www.luogu.com.cn/article/jbekb3o8)

比赛等级分的计算涉及两个主要因素:预期胜率和实际比赛结果。预期胜率是基于选手的当前等级分差异来计算的。如果一个选手击败另一个的选手,那么前者的等级分将会上升,而后者的等级分则会下降。当一个选手参加比赛场次较少时,等级分可能无法体现选手的真实水平。当选手参加 5 次比赛以后,将会逐渐收敛到选手的真实水平。

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