Palindrome.cs

usingSystem;
usingSystem.Text.RegularExpressions;

namespaceAlgorithms.Strings;

/// <summary>
/// Palindrome a series of characters or a string that when reversed,
/// equals the original string.
/// </summary>
publicstaticclassPalindrome
{
/// <summary>
/// Function to check if a string is a palindrome.
/// </summary>
/// <param name="word">String being checked.</param>
publicstaticboolIsStringPalindrome(stringword)=>
TypifyString(word).Equals(TypifyString(ReverseString(word)));

/// <summary>
/// Typify string to lower and remove white spaces.
/// </summary>
/// <param name="word">String to remove spaces.</param>
/// <returns>Returns original string without spaces.</returns>
privatestaticstringTypifyString(stringword)=>
Regex.Replace(word.ToLowerInvariant(),@"\s+",string.Empty);

/// <summary>
/// Helper function that returns a reversed string inputed.
/// </summary>
/// <param name="s">String to be reversed.</param>
/// <returns>Returns s reversed.</returns>
privatestaticstringReverseString(strings)
{
vararr=s.ToCharArray();
Array.Reverse(arr);
returnnewstring(arr);
}
}