Maximum number of occurrences a character appears in an array of strings

Question

In C#, given the array :

string[] myStrings = new string[] {
  \"test#test\",
  \"##test\",
  \"######\", // Winner (outputs 6)
};

How can

Answer 1

You can do that with Linq combined to Regex:

myStrings.Select(x => Regex.Matches(x, "#").Count).max();