推荐订阅源

using System;

class Program
{
    static void Main()
    {
        Console.WriteLine(AreAnagrams("CCAA", "CAAC"));
        Console.WriteLine(AreAnagrams("CARE", "RACE"));
    }

    static bool AreAnagrams(string str1, string str2)
    {
        if (str1.Length!= str2.Length)
            return false;

        int[] charCount1 = new int[26];
        int[] charCount2 = new int[26];

        for (int i = 0; i < str1.Length; i++)
        {
            charCount1[str1[i] - 'A']++;
            charCount2[str2[i] - 'A']++;
        }

        for (int i = 0; i < 26; i++)
        {
            if (charCount1[i]!= charCount2[i])
                return false;
        }

        return true;
    }
}