Permutations of capitalization

Question

I want to build a list containing every possible permutation of capitalization of a word. so it would be

List permutate(string word)
{
    List         


        

Answer 1

You can modify individual characters if you convert your string to an array of char. Something like this should do the trick...

public static List Permute( string s )
{
  List listPermutations = new List();

  char[] array = s.ToLower().ToCharArray();
  int iterations = (1 << array.Length) - 1;

  for( int i = 0; i <= iterations; i++ )
  {
    for( int j = 0; j < array.Length; j++ )
    array[j] = (i & (1<