In this course, we will take a closer look at one of the algorithm problems that frequently appears in coding tests, “Finding the Maximum Sum of a Continuous Subarray.” We will explain how to solve the problem using Swift and the process of writing an efficient algorithm step by step.<\/p>\n
The problem is to find the maximum sum of contiguous elements from a given integer array. For example, if the array is To solve this problem, we will use the Kadane’s Algorithm<\/strong> as a prerequisite knowledge. This algorithm is an efficient method that can solve the problem with a time complexity of O(n).<\/p>\n The Kadane’s algorithm works as follows:<\/p>\n Now let’s implement Kadane’s algorithm in Swift.<\/p>\n The code above consists of the following steps:<\/p>\n[1, -2, 3, 4, -1, 2, 1, -5, 4]<\/code>, the maximum sum of contiguous elements is 3 + 4 + -1 + 2 + 1 = 9<\/code>.<\/p>\nInput<\/h3>\n
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Output<\/h3>\n
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Problem Approach<\/h2>\n
Explanation of Kadane’s Algorithm<\/h3>\n
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Swift Code Implementation<\/h2>\n
import Foundation\n\nfunc maxSubArraySum(_ nums: [Int]) -> Int {\n var maxSum = nums[0] \/\/ Initialize maximum sum of contiguous array\n var currentSum = nums[0] \/\/ Initialize current sum of contiguous array\n\n for i in 1..Code Explanation<\/h2>\n