1. Two sum (22.12.03)

Question

My answer

class Solution {
    func twoSum(_ nums: [Int], _ target: Int) -> [Int] {
        for i in 0..<nums.count {
            for j in i+1..<nums.count {
                if nums[i] + nums[j] == target {
                    return [i,j]
                }
            }
        }
      return []
    }
}