CSHARP

palindrome number c#

    static bool IsPalindrome(int n)
    {
        return n.ToString() == Reverse(n.ToString());
    }

    static string Reverse(string str)
    {
        return new string(str.ToCharArray().Reverse().ToArray());
    }

Palindrome Number C#

Copy
public class Solution {
    public bool IsPalindrome(int x) {
        string first = x.ToString();             //turn to string (easy to reverse)
        char[] charArr = first.ToCharArray();   //the original target
        char[] reverseArr = first.ToCharArray();   

        Array.Reverse(reverseArr );                 
     
        return charArr.SequenceEqual(reverseArr); //compare two array
    }
}

Palindrome Number C# - better solution

Copy
public class Solution {
    public bool IsPalindrome(int x) {
        string k = x.ToString();        
        
        for(int i=0;i<k.Length/2;i++)   
        {
            if(k[i] != k[k.Length-1-i]) 
            {
                return false;           // if any char not the same, return false
            }
        }
        return true;                    
    }
}