# A Very Big Sum Solution in Kotlin -HackerRank

**Problem **: In this challenge, you are required to calculate and print the sum of the elements in an array, keeping in mind that some of those integers may be quite large.

**Function Description**

Complete the aVeryBigSum function in the editor below. It must return the sum of all array elements.

aVeryBigSum has the following parameter(s):

- int ar[n]: an array of integers .

**Return**

- long: the sum of all array elements

**Input Format**

The first line of the input consists of an integer ** n**.

The next line contains

**space-separated integers contained in the array.**

*n***Output Format**

Return the integer sum of the elements in the array.

**Constraints**

*1<n <10*

*0<ar[i]<10*

**Sample Input**

`5`

1000000001 1000000002 1000000003 1000000004 1000000005

**Output**

`5000000015`

**ANSWER**

funaVeryBigSum(ar: Array<Long>): Long {vartotal: Long = 0 ar.forEach {it->

total +=it}

returntotal}

**NOTE**

The range of the 32-bit integer.

When we add several integer values, the resulting sum might exceed the above range. You might need to use long int C/C++/Java / Kotlin to store such sums.