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GeezerVison is showing github.com — Java/DynamicProgramming/KadaneAlgorithm.java at master · oribach/Java Expand file tree/ Copy pathKadaneAlgorithm.javaMore file actions 52 lines (48 loc) · 1.14 KB / Copy pathKadaneAlgorithm.javaFile metadata and controls52 lines (48 loc) · 1.14 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 package DynamicProgramming; import java.util.Scanner; /** * Program to implement Kadane’s Algorithm to calculate maximum contiguous subarray sum of an array * Time Complexity: O(n) * * @author Nishita Aggarwal */ public class KadaneAlgorithm { /** * This method implements Kadane's Algorithm * * @param arr The input array * @return The maximum contiguous subarray sum of the array */ static int largestContiguousSum(int arr[]) { int i, len = arr.length, cursum = 0, maxsum = Integer.MIN_VALUE; if (len == 0) // empty array return 0; for (i = 0; i < len; i++) { cursum += arr[i]; if (cursum > maxsum) { maxsum = cursum; } if (cursum <= 0) { cursum = 0; } } return maxsum; } /** * Main method * * @param args Command line arguments */ public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n, arr[], i; n = sc.nextInt(); arr = new int[n]; for (i = 0; i < n; i++) { arr[i] = sc.nextInt(); } int maxContSum = largestContiguousSum(arr); System.out.println(maxContSum); sc.close(); } } |
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