Home » Arrays(Dont Mess With Me) » Kadane Algorithm

Kadane Algorithm

// this is KADANE ALGOL…
// The Aim of the program as the title suggest is to find the largest sum of a contiguous sequence of array elements..
// (array containing at least one positive number)
// For example
// Array {4,-9,3,-2,4,-12} the sequence {3,-2,4} is the continuous sequence with largest sum 5

import java.io.*;
public class MaxSubsum
 public static int MaxSum(int[] array) {
 int maxsum = 0;
 int sum = 0;
 for (int i = 0; i < array.length; i++)
 sum = sum + array[i];
 if (sum > maxsum)
 maxsum = sum;

 else if (sum < 0)
 sum = 0;
 return maxsum;
 public static void main (String[] args) throws IOException
 int[] a=new int[25];
 int num=0,i=0;
 BufferedReader reader=new BufferedReader(new InputStreamReader(System.in));
 System.out.println("Enter the Number of element");
 System.out.println("Enter the array");
 int value = MaxSum(a);
 System.out.println("The maximum sub sum is:"+value);



  1. Kevin Lee says:

    Hi Appit,

    Your blog is such a complete read. I like your approach with Kadane Algorithm find if each of the two arrays have the same set of integers. Clearly, you wrote it to make learning a cake walk for me.

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    Super likes !!! for this amazing post. I thinks everyone should bookmark this.

    Kind Regards,

  2. Hallo There,

    I learnt so much in such little time about Kadane Algorithm. Even a toddler could become smart reading of your amazing articles.

    I am currently working on a project that does not include storyboards and I am trying to create a user authentication and sign-in method. I was initially going to use FireBase but they did not have Carthage support so I decided to try out AWS. I initially tried using AWSCognitoIdentityProvider framework with my custom UI but the passwordauthentication method for signing in would not trigger a result. I moved onto the AWSAuthUI framework (plus AWSAuthCore, AWSFacebookSignIn, AWSGoogleSignIn, AWSUserPoolsSignIn) with the built in UI but I keep getting the error below before even getting to the login screen.

    Anyways great write up, your efforts are much appreciated.


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