20002. Cryptocurrency Querying

I'm a slow walker, but I never walk backwards.

Due date: 2018/04/09 23:59:59
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Cryptocurrency is in a big appreciation these year. So John Ceena, an oil tycoon wants to dive into the cryptocurrency market. However, the currencys, exchanges, and so many things make John really confused. As a result, he wants to hire you helping him to sort out the large data, and find out the best currency, exchange to put his enormous asset in.

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