TwoSum.swift

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// Given an array of integers, return indices of the two numbers such that they add up to a specific target.

// You may assume that each input would have exactly one solution, and you may not use the same element twice.

// Example:

// Given nums = [2, 7, 11, 15], target = 9,

// Because nums[0] + nums[1] = 2 + 7 = 9,
// return [0, 1].


class Solution {
    func twoSum(_ nums: [Int], _ target: Int) -> [Int] {
      
    }
}