--formated: Arrays/AVeryBigSum.java

Author: srsandy

Practice Problems/Arrays/A Very Big Sum/AVeryBigSum.java

@@ -7,6 +7,7 @@ static long aVeryBigSum(long[] ar) {
     		sum+=i;
     	return sum;
     }
+	
     public static void main(String[]args) {
     	Scanner sc = new Scanner(System.in);
     	int a = sc.nextInt();

Practice Problems/Arrays/A Very Big Sum/Readme.md

@@ -1,35 +1,46 @@
-This problem is from Hackerrank.
+# A Very Big Sum
+
+**Problem from HackerRank**
+
 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.
 
-It must return the sum of all array elements.
+**Function Description**
 
-aVeryBigSum has the following parameter(s):
+Complete the `aVeryBigSum` function in the editor below. It must return the sum of all array elements.
 
-int ar[n]: an array of integers .
+`aVeryBigSum` has the following parameter(s):
 
-Return
+- int ar[n]: an array of integers .
 
-long: the sum of all array elements
+**Return** long: the sum of all array elements
 
-Input Format
+**Input Format**
 
-The first line of the input consists of an integer .
-The next line contains  space-separated integers contained in the array.
+The first line of the input consists of an integer `n`.
+The next line contains `n` space-separated integers contained in the array.
 
-Output Format
+**Output Format**
 
 Return the integer sum of the elements in the array.
 
+**Constraints**
+
+- 1 <= `n` <= 10
+- 0 <= `ar[i]` <= 10<sup>10</sup>
 
-Sample Input
+## Example:
 
+**Input**
+
+```java
 5
 1000000001 1000000002 1000000003 1000000004 1000000005
+```
 
 Output
 
+```java
 5000000015
+```
 
-Note:
-
-When we add several integer values, the resulting sum might exceed the above range. You might need to use long int C/C++/Java to store such sums.
+**Note:** The range of the 32 bit integer is (-2<sup>31</sup>) to (2<sup>31</sup> - 1) or [-2147483648, 2147483648]. When we add several integer values, the resulting sum might exceed the above range. You might need to use long int C/C++/Java to store such sums.

Practice Problems/Arrays/README.md

@@ -4,6 +4,7 @@ All questions added here are taken from various sites like GeeksForGeeks, LeetCo
 
 ## Problems
 
+- [ A Very Big Sum](https://github.com/srsandy/Data-Structures-and-Algorithms-in-Java-2nd-Edition-by-Robert-Lafore/tree/master/Practice%20Problems/Arrays/A%20Very%20Big%20Sum)
 - [Arrange Students](https://github.com/srsandy/Data-Structures-and-Algorithms-in-Java-2nd-Edition-by-Robert-Lafore/tree/master/Practice%20Problems/Arrays/Arrange%20Students)
 - [Find All Numbers Disappeared In An Array](https://github.com/srsandy/Data-Structures-and-Algorithms-in-Java-2nd-Edition-by-Robert-Lafore/tree/master/Practice%20Problems/Arrays/Find%20All%20Numbers%20Disappeared%20In%20An%20Array)
 - [Knight's Possible Moves](https://github.com/srsandy/Data-Structures-and-Algorithms-in-Java-2nd-Edition-by-Robert-Lafore/tree/master/Practice%20Problems/Arrays/Knight's%20Possible%20Moves)