Abstract: The current paper proposes a reversible data hiding technique in an encrypted image (RDHEI) using a parametric binary tree labeling (PBTL) scheme. The PBTL scheme provides a range of ...
1. DFS using depth marker: 每个depth都存一下。然后如果有不符合条件的，存为-1. 一旦有 <0 或者差值大于1， 就全部返回Integer.MIN ...
Abstract: Binary search trees (BSTs) are one of the most important data structures in computer science. A parallel construction algorithm of a BST can be easily derived from the sequential algorithm.
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