C#

StringBuilder sb = new StringBuilder();
sb.Append("hi friends hi");

Console.WriteLine("Count is " + "".ToString().Split(new []{" "}, StringSplitOptions.RemoveEmptyEntries).
Where(w => w.Equals("hi", StringComparison.CurrentCultureIgnoreCase)).Count();

public static int CountWords1(string s)
{
MatchCollection collection = Regex.Matches(s, @"[\S]+");
return collection.Count;
}

Jasmine2501 wrote:

Skipping to the last part won't help you pass the class.

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]

Jasmine2501 wrote:

but I only did one productive thing the whole time.

Bastard Programmer from Hell
If you can't read my code, try converting it here[^]

sb.ToString().Split(' ').ToList().Distinct().Count()

kanamala subin wrote:

i want to check the count of "hi" in the sb

so my final output would be like this.

 

Count is 2.

Dictionary<string, int> wordCount = new Dictionary<string,int>();
sb.ToString().Split(' ').ToList().ForEach(w=>
{
  if (wordCount.ContainsKey(w) ++wordCountCount[w];
  else wordCount[w]=1;
}

private static ulong[] fibValues = { 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ...};

Private Function Fibonacci(ByVal n As Integer) As Double
    Return (1 / Math.Sqrt(5)) * ((1 + Math.Sqrt(5)) / 2) ^ n - (1 / Math.Sqrt(5)) * ((1 - Math.Sqrt(5)) / 2) ^ n
End Function