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| = Assignment 2: Word Ladder = | = Assignment 2: Ordered Word Ladders = |
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| A ''word ladder'' is a sequence of words * which are in alphabetic order * each word in the sequence differs from its predecessor by * changing one letter, e.g. ''born→barn'' * adding or removing one letter, e.g. ''band→brand'' |
An ''ordered word ladder'' is an alphabetically-ordered sequence of words where each word in the sequence differs from its predecessor by: 1. changing one letter, e.g. ''barn→born'' 1. adding or removing one letter, e.g. ''band→brand'' |
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| The following are examples of word ladders of different length (that could each easily be made longer): * ''big→bit→bat→boat'', length 4 * ''cold→cord→word→ward→warm'', length 5 * ''line→fine→five→dive→live→like→lake→take→bake→cake→came→fame'', length 12 |
The following are examples of word ladders of different length: * ''ban→bar→boar→boat→goat'', length 5 * ''cab→can→cane→dane→date→mate→mite→site→size'', length 9 |
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| {{{ Your assignment is to write a program that computes the longest word chain(s) that can be built from a set of words given on ''stdin''. The output of your program is the maximum length of all the word chains that can be built from the input words, together with all the word chains that have this length. }}} |
At the heart of the assignment is a function that compares 2 strings and returns 1 (i.e. ''true'') if the strings satisfy one of the 2 conditions above, and false otherwise. This function will have signature {{{bool areOwl(char *, char *)}}}. Write such a function. |
Contents
Assignment 2: Ordered Word Ladders
An ordered word ladder is an alphabetically-ordered sequence of words where each word in the sequence differs from its predecessor by:
changing one letter, e.g. barn→born
adding or removing one letter, e.g. band→brand
The following are examples of word ladders of different length:
ban→bar→boar→boat→goat, length 5
cab→can→cane→dane→date→mate→mite→site→size, length 9
At the heart of the assignment is a function that compares 2 strings and returns 1 (i.e. true) if the strings satisfy one of the 2 conditions above, and false otherwise. This function will have signature bool areOwl(char *, char *). Write such a function.