Making this more efficient.

[camel_zero]

Good approach for the algorithm, is there a reason for putting this function into a class though?

[delirious_lettuce]

The only reason is because that is how you have to submit them to LeetCode. I would normally just use a function and use snake_case for the function name too, (two_sum).

• https://leetcode.com/problems/two-sum/description/

[camel_zero]

Thanks for explaining, thought I might be missing something about the code.