Real image compression (JPEG, PNG) uses different techniques (DCT, entropy coding), but quadtrees capture the same principle: spend your bits where the detail is, not uniformly across the whole image.
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，详情可参考快连下载安装
* 时间复杂度：O(len1 + len2)，空间复杂度：O(len2)（栈+Map的空间），详情可参考旺商聊官方下载
小鹏发 2026 开工信：自动驾驶、机器人与全球化全面加速
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