Leetcode 1: Two Sum in Solidity

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Singularity 2045
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Published on ● Video Link: https://www.youtube.com/watch?v=xAcrcfpSDEw


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Challenge: solve using O(n) time complexity.
You need to use a mapping in Solidity to this.
However, you need to pad the array in the first slot to overcome the fact that mappings do not have starting value null, but 0. This filters the nums[0] edge case.

Solidity: https://github.com/MarcusWentz/LeetcodeAlgorithms/blob/main/Solidity/TwoSum/contracts/TwoSum.sol

Hardhat: https://github.com/MarcusWentz/LeetcodeAlgorithms/blob/main/Solidity/TwoSum/contracts/TwoSum.so:



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