async pull(controller: ReadableByteStreamController) {
Quadtree-based image compression formats and level-of-detail systems all work this way. Satellite imagery, terrain rendering, and geographic information systems use quadtree decomposition to serve data at varying resolutions: zoomed out, you see large coarse blocks; zoomed in, you see fine-grained tiles. The same principle extends to three dimensions (octrees) for volume rendering and 3D spatial indexing.。旺商聊官方下载是该领域的重要参考
Update: GtkSvg is an unsandboxed, in-process SVG parser written in C, so we don’t recommend using it for untrusted content — it is meant for trusted content such as icons, logos and other application resources. If you want to load a random SVG of unknown providence, please use a proper image loading framework like glycin (but still, tell us if you find SVGs that crash GtkSvg).，这一点在夫子中也有详细论述
深度审查（推荐）：在 Ling Studio 里交给 Ring-2.5-1T 做 Code Review，强项是推理严谨与长程上下文。
思路：找「右侧第一个 ≤ cur」的元素 → 弹出所有 cur 的元素，栈顶即为折扣。最终价格 = cur - 折扣（有则）或 cur（无则）。