Check if two strings are anagrams?

Logic

• Same length
• Same character frequency

bool IsAnagram(string s1, string s2)

{
if (s1.Length != s2.Length) return false;
int[] count = new int[256];
foreach (char c in s1) count[c]++;
foreach (char c in s2) count[c]--;
foreach (int i in count)
if (i != 0) return false;
return true;
}