Is char Array Duplicate - CSharp System

CSharp examples for System:Array Element

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Description

Is char Array Duplicate

Demo Code


using System.Text;
using System.Collections.Generic;
using System;/*from w w w  . j a  v  a2s. co m*/

public class Main{
        public static bool IsArrayDuplicate(char[] chars)
        {
            // using HashSet in .Net 3.5+
            Dictionary<char, object> dict = new Dictionary<char, object>(chars.Length);
            for (var i = 0; i < chars.Length; i++)
            {
                char c = chars[i];
                if (dict.ContainsKey(c))
                    return true;
                else
                    dict.Add(c, null);
            }
            return false;
        }
}

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