Unlock All Tasks
Learn by doing is the most effective way to master engineering skills. Real Dev provides a variety of real-world projects from backend like nodejs, Django to frontend React and HTML. Start working today and really master the skills.

Task: Bitcoin Trackdown


Recently a horrible hack event happens with Binance the exchange. Over 7000 BTC was hacked and transferred away. As a bitcoin enthusiast, you're super interested to find out where those money went.

Given a BTC address source. Can you write a program to find out a list of addresses, that historically, there's BTC coming out of source and going into these addresses. Sort them by the total amount of BTC, and only output top 10, and their corresponding outgoing number of BTC value in satoshi.


Script, Blockchain, API, Internet Access


Problem Solving

Unlock all the tasks

Nobody here yet, solve it now to get on the board!