The task for last month’s Exercise<\/a> was to encode a string. As you may have feared, the task for this month’s Exercise is to decode that string. Let me review: To obtain the original string, you must work backwards: The first character’s ASCII code value is represented as a two-digit hex value. The next character is the difference between the first and second characters, again represented as a two-digit hex value. Each subsequent character is the same: the difference between the current character and the previous one. But this math isn’t the most difficult part of the puzzle.<\/p>\n No, another perhaps unforeseen problem is ensure that you properly interpret the two-digit hex values.<\/p>\n As with last month’s Exercise, for this month’s Exercise you must create a filter. The filter reads standard input and converts the hex digits into characters. You can test your solution on the string presented at the start of last month’s Exercise:<\/p>\n When I run this string through my solution, I see this output:<\/p>\n Aw. 🥰<\/p>\n Click here<\/a> to view my solution, though please try this Exercise on your own rather than see what I did first.<\/p>\n","protected":false},"excerpt":{"rendered":" 48190F0009A72E1712A9390CFC11AFE9 Continue reading
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\nThe method for string encoding presented last month works like this:<\/p>\n\n
48190F0009A72827FDFDFBFD18FAAD460CFDFEB323EA192903BB1731F800FCFC0E97<\/code><\/p>\nHappy Holidays from C-For-Dummies<\/code><\/p>\n