CombinedStorage o-- Storage : contains
P(all in some semicircle)=∑i=1NP(Ei)=N⋅12N−1=N2N−1P(\text{all in some semicircle}) = \sum_{i=1}^{N} P(E_i) = N \cdot \frac{1}{2^{N-1}} = \frac{N}{2^{N-1}}P(all in some semicircle)=∑i=1NP(Ei)=N⋅2N−11=2N−1N
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Source: Computational Materials Science, Volume 267
Yuanji Yunjiao has also run into a growth bottleneck and has kept trying to break through. On the one hand, growth has been heavily dependent on store count. In the first three quarters of 2025, per-store revenue efficiency fell 4.3% year on year, while average spend per order dropped from RMB 26.1 in 2023 to RMB 22.8. In lower-tier markets, the company also faced challenges such as pricing that is perceived as too high (an average of RMB 23, close to the upper limit of the price band in lower-tier cities) and difficulties in flavor localization—its southern-style, fresher and slightly sweeter taste profile has not been well accepted in lower-tier northern cities.
近日，湖南岳阳市民王先生在中国黄金门店花费19380元购买20克金条，准备用于结婚打制三金，在打金店加工时发现金条存在杂质，经仪器检测含有铼粉。王先生通过中国黄金微信服务号查询金条出品编号，未能查询到相关信息。报警后，王先生在警方陪同下前往门店索要正规进货凭证，门店无法提供。中国黄金客服表示，涉事门店为加盟店，品牌所售黄金均为统一采购供货，该金条编码暂未录入系统，暂不了解相关进货记录与台账。目前，当地市场监管部门已介入调查。（大众新闻）