Concordium Academy
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Basic Smart Contract

Create a smart contract that mints a CIS-2 token, transfers, and burns it when invoked by the concordium-client. It should require 20 CCDs for each operation (invokes) as transaction fees and doesn't allow minting the same token ID twice.
To be able to accept CCD, you have to add the payable attribute to the #[receive] macro.
You will earn the beginner-level NFT badge!