How do I implement two-pointer techniques in Swift?

Learn how to implement the two-pointer technique in Swift to solve various algorithmic problems efficiently. This method can optimize your code and improve performance in scenarios such as finding pairs in a sorted array or removing duplicates.
Swift, two-pointer technique, algorithm, coding, optimization
// Example of Two-Pointer Technique in Swift func twoSum(_ nums: [Int], _ target: Int) -> [Int] { var left = 0 var right = nums.count - 1 let sortedNums = nums.sorted() // Assuming the input array is not sorted while left < right { let currentSum = sortedNums[left] + sortedNums[right] if currentSum == target { return [sortedNums[left], sortedNums[right]] } else if currentSum < target { left += 1 } else { right -= 1 } } return [] } // Usage let nums = [1, 2, 3, 4, 5] let target = 6 let result = twoSum(nums, target) // returns [1, 5]

Swift two-pointer technique algorithm coding optimization

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