Three fans found to have made gesture in Frankfurt
On the first loop iteration, there is no backing store for tasks, so
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В России спрогнозировали стабильное изменение цен на топливо14:55
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.
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.