!!! **CODE WARS - JULY!**!!

*NOTE - ALL STUDENTS FROM FSR AND DS have to attempt these questions and solve them in Python (DS STUDENTS) and JavaScript (FSR STUDENTS)!!!

**Question 1 Easy:**

Given an integer array **Arr[]** of size **N**. The task is to find sum of it.

**Example 1:**

```
Input:N = 4Arr[] = {1, 2, 3, 4}Output: 10Explanation: 1 + 2 + 3 + 4 = 10.
```

**Example 2:**

```
Input:N = 3Arr[] = {1, 3, 3}Output: 7Explanation: 1 + 3 + 3 = 7.
```

**Your Task:**

Complete the function **sum()** which takes array **arr** and single integer **n**, as input parameters and returns an integer denoting the answer. You don’t to print answer or take inputs.

**Question 2 Medium:**

Given a number N.Find if the digit sum(or sum of digits) of N is a Palindrome number or not.

Note:A Palindrome number is a number which stays the same when reversed.Example- 121,131,7 etc.

**Example 1:**

```
Input:N=56Output:1Explanation:The digit sum of 56 is 5+6=11.Since, 11 is a palindrome number.Thus,answer is 1.
```

**Example 2:**

```
Input:N=98Output:0Explanation:The digit sum of 98 is 9+8=17.Since 17 is not a palindrome,thus, answeris 0.
```

**Your Task:**

You don’t need to read input or print anything.Your Task is to complete the function **isDigitSumPalindrome()** which takes a number N as input parameter and returns 1 if the Digit sum of N is a palindrome.Otherwise it returns 0.

**Question 3 Medium:**

Given an integer, check whether it is a palindrome or not.

**Example 1:**

```
Input: n = 555Output: Yes
```

**Example 2:**

```
Input: n = 123Output: No
```

**Your Task:**

You don’t need to read or print anything. Your task is to complete the function **is_palindrome()** which takes the number as input parameter and returns “Yes” if it is palindrome otherwise returns “No”(Without quotes).