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Find largest adjacent sum of two integers in an Array


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Find the largest adjacent sum of two numbers in a given array.

Note: Hope it helps you! Please note that all the intentions are to clear the doubt of how to solve it in java. So, please try to give it a chance at least before using this. If you face any discrepancy please contact us. Thank you!

Description: 

Given an array of integers, find the pair of adjacent elements that has the largest sum and return that sum.

Example: 

For array = [2, 5, 4, -2, -5, 7, 3]

The output should be
adjacentElementsSum(array) = 10

as 7 and 3 produce the largest Sum.

Solution:

import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class AdjacentElementsSum
{
public static void main (String[] args) throws java.lang.Exception{
AdjacentElementsSum q1 = new AdjacentElementsSum();
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int[] array = new int[n];
for(int i = 0; i < array.length; i++){
    array[i] = sc.nextInt();
}
System.out.println("Largest adjacent sum is: ");
System.out.println(q1.adjacentElementsSum(array));
}
int adjacentElementsSum(int[] array){     
    int max_sum = array[0]+array[1];
    int n = array.length;     
    for(int i = 0; i < n-1; i++){         
        int temp = array[i]+array[i+1];
        if(temp > max_sum){
            max_sum = temp;
        }
    }
    return max_sum;
}
}

Output:

Output


Time Complexity = O(n)

Hope it helps!

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