Computer science education cannot make anybody an expert programmer any more than studying brushes and pigment can make somebody an expert painter. Eric S. Raymond
Word ladder puzzle begins with two words and to solve the puzzle one must find a chain of other words to link the two, in which two adjacent words differ by one letter.
Write a program to implement Word Ladder using set?
Find the ladder 'fool' and 'sage' fool -> pool -> poll -> pall -> pale -> sale -> sage -> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Find the ladder 'cold' and 'warm' cold -> cord -> card -> ward -> warm ->