TREE TRAVERSAL +========+ Time: 1 hour - 2 hours Difficulty: Medium Languages: Any +========+ Given the root of a binary tree, implement functions to perform pre-order, in-order, and post-order traversal of the tree and return a list of the visited nodes. +========+ Please answer to this message with your solution :)
TREE TRAVERSAL +========+ Time: 1 hour - 2 hours Difficulty: Medium Languages: Any +========+ Given the root of a binary tree, implement functions to perform pre-order, in-order, and post-order traversal of the tree and return a list of the visited nodes. +========+ Please answer to this message with your solution :)
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Bitcoin mining is the process of adding new transactions to the Bitcoin blockchain. It’s a tough job. People who choose to mine Bitcoin use a process called proof of work, deploying computers in a race to solve mathematical puzzles that verify transactions.To entice miners to keep racing to solve the puzzles and support the overall system, the Bitcoin code rewards miners with new Bitcoins. “This is how new coins are created” and new transactions are added to the blockchain, says Okoro.
The S&P 500 slumped 1.8% on Monday and Tuesday, thanks to China Evergrande, the Chinese property company that looks like it is ready to default on its more-than $300 billion in debt. Cries of the next Lehman Brothers—or maybe the next Silverado?—echoed through the canyons of Wall Street as investors prepared for the worst.
Programming Challenges How to be a breathtaking Programmer from tw
