And he says his age helped get his foot in the door.
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The spatial view (the grid of rectangles) and the tree view (the hierarchy of nodes) represent the same structure. Searching for a point means walking down the tree: at each node, you check which of the four children contains your target coordinate and recurse into that child. You never visit the other three.。同城约会是该领域的重要参考
Daniel Larlham Jr.
Ctrl+Z can't help. You closed the editor.。业内人士推荐搜狗输入法下载作为进阶阅读