At the same time, the company’s weaknesses and growth pain points are equally prominent—and have become the central tests on its path to an IPO. First, control gaps in the franchising model are glaring. With franchised stores accounting for more than 95% of the network, quality control is extremely difficult. In 2024, the “worm incident” at a Beijing franchise store triggered a crisis of trust in the brand; related complaints on the Black Cat platform exceeded 380. Revenue at some outlets plunged by 30%. Meanwhile, in 2025 the ratio of newly opened to closed franchise stores deteriorated from 15:1 to 3:1. Franchisees’ payback periods averaged 13–20 months—and could be longer in top-tier cities due to intense competition. Waning franchisee enthusiasm directly undermines the stability of the company’s core source of revenue.
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.
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国投智能：公司被美国商务部、财政部、国防部列入制裁清单
保险人与被保险人未约定保险价值的，保险价值按照下列规定计算：