BlackRock interview question
1. Difference between Shallow copy and deep copy in C++/ 2. Implement a class based on the singleton pattern in Java. 3. Find the first common predecessor of a node in BST.
1. Difference between Shallow copy and deep copy in C++/ 2. Implement a class based on the singleton pattern in Java. 3. Find the first common predecessor of a node in BST.
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