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Learn Motoko

Beginner

Introduction to Solidity

Intermediate

Learn TON

Challenges

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FizzBuzz

Solidity: Beginner

Your first step to ace the Solidity coding interview.
FizzBuzz is one of the most infamous coding challenges to quickly screen off candidates.

Even Fibonacci Sum

Solidity: Intermediate

Will you be able to calculate the sum of all even Fibonacci numbers up to 4000000 or you'll push the EVM to its knees?

Largest prime factor

Solidity: Intermediate

Sieve of eratosthenes, Sieve of Atkin, your choice.
In this challenge you will test your prime factorization skills in Solidity.

Hello Lisk

Lisk: Beginner

Write your first smart contract on Lisk.
In this challenge you will be asked to write a Hello World contract that adds user provided string to the blockchain.