CODE

public class Solution {
  public bool IsAnagram(string s, string t) {
    if (s.Length != t.Length)
      return false;

    char[] s_letters = new char[t.Length];
    char[] t_letters = new char[t.Length];
    for (int i = 0; i < t.Length; i++)
    {
      s_letters[i] = s[i];
      t_letters[i] = t[i];
    }
    Array.Sort(s_letters);
    Array.Sort(t_letters);

    for (int i = 0; i < t.Length; i++)
      if (s_letters[i] != t_letters[i])
        return false;
      return true;
    }
}