If builders built buildings the way programmers wrote programs, then the first woodpecker that came along wound destroy civilization. Gerald Weinberg
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 ->