SMARTmania fórum

Code: Select all

        private static void fizzbuzz_normal()
        {
            string output = string.Empty;
            for (int i = 0; i <= 100; i++)
            {
                if (i % 3 == 0)
                { output += "fizz"; }

                if (i % 5 == 0)
                { output += "buzz"; }

                if (output == string.Empty)
                { output = i.ToString(); }

                Console.WriteLine(output);
                output = string.Empty;
            }
        }

Code: Select all

         static int NthFibonacci(int n)
        {
            if (n == 0)
                return 0;
            else if (n == 1)
                return 1;
            else
                return NthFibonacci(n - 1) + NthFibonacci(n - 2);
        }

         static int NthFibonacci2(int n)
         {
             int result = 0;
             int prev = 0;
             int prevPrev = 0;

             for(int i = 0; i <= n; i++)
             {
                 if (i == 1)
                 {
                     result = 1;
                 }
                 else
                 {
                     result = prevPrev + prev;
                 }
                prevPrev = prev;
                prev = result;
             }

             return result;

         }

Code: Select all

let rec permutations (input: 'a list) = seq {
    if (input.IsEmpty) then 
        yield []
    else
        
            for i in input do
            yield! input
                    |> List.filter (fun x-> x<> i) 
                    |> permutations
                    |> Seq.map (fun x->i::x)
    }

Code: Select all

public IEnumerable<IEnumerable<T>> Permutation<T>(IEnumerable<T> input)
{            
    if (input == null || !input.Any()) yield break;
    if (input.Count() == 1) yield return input;

    foreach (var item in input)
    {
        var next  = input.Where(l => !l.Equals(item)).ToList();
        foreach (var perm in Permutation(next))
        {
            yield return (new List<T>{item}).Concat(perm);
        }
    }
}

Code: Select all

foreach i in X
 permutacia = (i, permutacia X\i)

Code: Select all

perms [] = [[]]
perms xs = [ x:ps | x <- xs , ps <- perms ( xs\\[x] ) ]