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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'' ('owl') 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'' and ''bran→ran'' |
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| * ''big→bit→bat→boat'' * ''cold→cord→word→warm'' |
* ''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 arbitrary strings and returns ''true'' if the strings satisfy one of the 2 conditions above, and ''false'' otherwise. This function has signature: {{{#!cplusplus bool differByOne(char *, char *) }}} Write such a function and of course test it. Details of the assignment will follow shortly. |
Contents
Assignment 2: Ordered Word Ladders
An ordered word ladder ('owl') 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 and bran→ran
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 arbitrary strings and returns true if the strings satisfy one of the 2 conditions above, and false otherwise. This function has signature:
1 bool differByOne(char *, char *)
Write such a function and of course test it.
Details of the assignment will follow shortly.