Algorithms

1. read all text into a single string (File.ReadAllText)

2. have a main loop traversing the text, and get the substring with length 2

3. now call recursive method that uses String.IndexOf to locate and count extra occurences of that substring

4. when found, for each of them increase substring length by 1 and recurse to 3

khalidelmeknesi wrote:

an example?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string _givenString = "wvtnfhxyz1hdxyz1fdxyz1ejxyz1dhxyz1dxyz1eeaa1oeys";
            Dictionary<string, int> _codes = new Dictionary<string, int>();
            int _startingPoint = 0;
            while (_startingPoint < _givenString.Length)
            {
                for (int j = 2; j < _givenString.Length; j++)
                {
                    for (int i = _startingPoint; i < _givenString.Length && i + j < _givenString.Length; i++)
                    {
                        if (!_codes.ContainsKey(_givenString.Substring(i, j)))
                        {
                            _codes.Add(_givenString.Substring(i, j), 1);
                        }
                        else
                        {
                            _codes[_givenString.Substring(i, j)] += 1;
                        }
                    }
                }
                
                _startingPoint++;
            }

            List<KeyValuePair<string, int>> _sortedCodes = SortDictionary(_codes);
            for (int i = 0; i < 5; i++)
            {
                Console.WriteLine(_sortedCodes[i].Key + " : " + _sortedCodes[i].Value + " times");
            }
            Console.ReadKey();
        }

        public static List<KeyValuePair<string, int>> SortDictionary(Dictionary<string, int> data)
        {
            List<KeyValuePair<string, int>> result =
                  new List<KeyValuePair<string, int>>(data);
            result.Sort(
              delegate(
                KeyValuePair<string, int> first,
                KeyValuePair<string, int> second)
              {
                  return second.Value.CompareTo(first.Value);
              }
              );
            return result;
        }
    }
}

khalidelmeknesi wrote:

is not 100 % good

kabirbdboy wrote:

actually my supervisor said me first find three webside on face recognition.