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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You may find my solution for this month’s Exercise to be more complex than necessary, but there’s a method to my madness.
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A chessboard is merely a two-dimensional array — a matrix — one where the rows and columns are the same size. As long as you can write code to output an 8-by-8 board, you can modify the code to reset the board’s size to any value.
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This month’s Exercise was to create a cycle of numbers, values that repeat within a certain range. Of all the Exercises presented so far on this site, this one probably has the greatest number of solutions.
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This month’s Exercise required you to create three rounding functions: roundup(), rounddown(), and roundhalf(). Each one deals with a floating-point value in a specific way, but they all handle the basic rounding chore by typecasting a floating point variable to an integer.
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