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# Palindrome String

Problem Description

Given a string, determine if it is a palindrome. While checking for a palindrome, you have to ignore spaces, case, and all special characters; i.e. consider only alphanumeric characters.

Check the sample test case for reference.
Return 0 / 1 ( 0 for false, 1 for true ) for this problem

Problem Constraints
1 <= |A| <= 106

Input Format
The first argument is a string A.

Output Format
Return 0 / 1 ( 0 for false, 1 for true ) for this problem

Example Input
Input 1:
```"A man, a plan, a canal: Panama"
```
Input 2:
```"race a car"
```

Example Output
Output 1:
`1`
Output 2:
`0`

Example Explanation
Explanation 1:
```The input string after ignoring spaces, and all special characters is "AmanaplanacanalPanama"
which is a palindrome after ignoring the case.```
Explanation 2:
`The input string after ignoring spaces, and all special characters is "raceacar" which is not a palindrome`

NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details.
Hints
• Hint 1
• Solution Approach
• Complete Solution

## Discussion

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