摘要:
An AVL tree is a self-balancing binary search tree. In an AVL tree, the heights of the two child subtrees of any node differ by at most one; if at any 阅读全文
摘要:
There is a kind of balanced binary search tree named red-black tree in the data structure. It has the following 5 properties: (1) Every node is either 阅读全文
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A table tennis club has N tables available to the public. The tables are numbered from 1 to N. For any pair of players, if there are some tables open 阅读全文
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A graph which is connected and acyclic can be considered a tree. The height of the tree depends on the selected root. Now you are supposed to find the 阅读全文
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There is a public bike service in Hangzhou City which provides great convenience to the tourists from all over the world. One may rent a bike at any s 阅读全文