Write an algorithm and program to find the word is palindrome or not?

public static bool CheckIfPalindrome(string original) { var reversed = new string(original.ToCharArray().Reverse().ToArray()); return original == reversed; } MessageBox.Show(CheckIfPalindrome("MADAM").ToString());

very easily we can do it public static bool CheckIfPalindrome(string original) { var reversed = new string(original.ToCharArray().Reverse().ToArray()); return original == reversed; } MessageBox.Show(CheckIfPalindrome("MADAM").ToString());

We can do it in two ways a) By using inbuild functions string strRev,strReal = null; Console.WriteLine("Enter the string.."); strReal = Console.ReadLine(); char[] tmpChar = strReal.ToCharArray(); Array.Reverse(tmpChar); strRev=new string(tmpChar); if(strReal.Equals(strRev, StringComparison.OrdinalIgnoreCase)) { Console.WriteLine("The string is pallindrome"); } else { Console.WriteLine("The string is not pallindrome"); } Console.ReadLine(); Ref : http://www.codeproject.com/Tips/153399/To-check-string-is-palindrome-or-not-in-NET-C b)Without Using inbuild functions When i write the first program, the interviewer asked me to write the same by not using inbuild functions private static bool chkPallindrome(string strVal) { try { int min = 0; int max = strVal.Length - 1; while (true) { if (min > max) return true; char minChar = strVal[min]; char maxChar = strVal[max]; if (char.ToLower(minChar) != char.ToLower(maxChar)) { return false; } min++; max--; } } catch (Exception) { throw; } } Ref : You can find out more here http://www.dotnetperls.com/palindrome