C#

// returns all numbers greater than 5 in the 'inputArr'
int[] result = Array.FindAll(inputArr, delegate(int i) { return i > 5; });
Console.WriteLine(result.Length);

int[] array = new int[10];
array[0] = 1;
array[1] = 1;
array[2] = 1;
array[3] = 2;
array[4] = 1;
array[5] = 2;
array[6] = 1;
array[7] = 1;
array[8] = 2;
array[9] = 3;

int count1 = Algorithms.CountWhere(array, delegate(int i) { return i == 1; });
Console.WriteLine("Count = {0}", count1);
int count2 = Algorithms.CountWhere(array, delegate(int i) { return i == 2; });
Console.WriteLine("Count = {0}", count2);
int count3 = Algorithms.CountWhere(array, delegate(int i) { return i == 3; });
Console.WriteLine("Count = {0}", count3);

tadhg88 wrote:

im not quite sure what the best way to go about this is so any help of advice would be appreciated