Question

How to count close repeating characters of a string in C#

Answer 1

using System;
using System.Text.RegularExpressions;

class Program
{
    static void Main() {
        String s = "c# wwwww programming ooo w"; 
       
        var matches = Regex.Matches(s, @"(.)\1+");
        for (int i = 0; i < matches.Count; i++) {
            Console.WriteLine(matches[i].Value + " : " + matches[i].Length + " times");

        }     
    }
}




/*
run:

wwwww : 5 times
mm : 2 times
ooo : 3 times

*/

 

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