'How can I build and verify Merkle Tree in solidity
A group of users is eligible for rewards in a certain token type.
I want to store the total reward in a smart contract called Distributor and allow the user to withdraw his reward portion from this contract.
To make sure that each user can only withdraw the amount he is assigned I want to use the Merkle Tree where all the distribution information is encoded into the Merkle root.
I want to build and verify the Merkle tree in the solidity file, not using javascript library such as merkletreejs, etc.
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