This is, without exaggeration, a client-side Man-in-the-Middle attack baked directly into the browser’s extension API. The site requests its player script; the extension intercepts that network request at the manifest level and silently substitutes its own poisoned version. HotAudio’s server never even knows.
const stack = []; // 单调栈：存储「右侧候选更大值」，栈内元素单调递增
，更多细节参见同城约会
A quadtree reduces this: rebuild the tree each frame, and for each object, query only the nearby region. Objects in distant quadrants are never compared.
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