This month’s Exercise is one of those old, programming warhorses: Calculate a depreciation schedule. At the simplest level, the solution is a mathematical loop and keeps subtracting a given percentage from a value.
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This month’s Exercise hosts a realm of possible solutions. So I present you with my three solutions, two of which are general and one specific.
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Writing an input routine isn’t that difficult in C. I cobble together simple input routines all the time. The scanf() function is brilliant for such situations. When you have to test input, things get dicey, which I hope you discovered as you attempted this month’s exercise.
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I crafted my solution to the cumulative song exercise by separating the parts of the song that are repeated from the unique text. Specifically, the ordinal days are unique as well as the gifts. The rest of the text is sung over and over.
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Two solutions are possible for this month’s Exercise, a string solution and a value solution. One is good for parsing the hex string right-to-left, the other for parsing the string left-to-right.
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My solution to this month’s Exercise is split into two main parts. The first part generates the random value in the range of 1 to 100. The second part performs the Hailstone sequence on that value.
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For my solution to this month’s Exercise I went binary. Several of the C language operators work at a binary level. Because the exercise was to make a binary, or bitwise, modification, I figured a binary operator would be in order.
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The key to unlocking this month’s Exercise is not to go insane on the code that processes the solution. As I wrote in the Exercise post, with data analysis in C, it’s important to properly represent the data so that you can easily manipulate it.
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This month’s task was to create code that translates spelling from a single word into the corresponding NATO phonetic alphabet words. For input such as hello the output would be something like:
Hotel Echo Lima Lima Oscar
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To make the conversion between simulating a single frame of bowling and an entire game isn’t that simple, which is mostly due to calculating the dreaded 10th Frame.
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