The C library holds functions that help you round-off floating point values. I can name a few, but then it would make this month’s rounding exercise too easy. So I won’t!
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Category Archives: Exercise
Just Average
Among the tools missing from the C library, which are ample in other programming languages, are functions that manipulate arrays. I’ve seen functions in other programming languages that slice, dice, mince, and chop an array. One of the more common functions calculates the average of a numeric array.
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Making Change
This month’s challenge is to calculate the number of quarters, dimes, nickels, and pennies required when given a specific dollar amount. It’s something fast food cashiers should know, but apparently they don’t! So maybe your solution to this exercise could help them.
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From Text to Integer
A program prompts for a value. The user types “12345” at the keyboard, but that input is a string and not the value 12,345. Therefore, the code must convert the string into a value. This task can be accomplished in a number of ways.
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The Inverse Pyramid
Two things that seem to be difficult for a beginning C programmer are numbers and their formatted presentation. I admit: These things are difficult to understand. Therefore some practice is in order.
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Hone Your Disk Drive C
Often times the problems you’ll encounter in C involve interface with something else. You’ll need to code directions for an operating system or interact with data that already exists or is output from some function. In this month’s exercise, you get to test-run those skills.
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Show Me a Bar Chart
Computers are notorious for spewing out rows and columns of meaningless numbers. Sure, they have significance, but often your audience is more energized when they view something other than a dull table filled with values.
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A Million Ways to Code in the West
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Actually, it doesn’t matter west, east, north, or south, as multiple solutions exist for any programming puzzle.
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One Word at a Time
A filter is a command line tool that takes input, modifies it, and generates output. This month’s Exercise is to create such a filter, one that takes text input and spews it out one word at a time.
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Truncate Well That String
Nothing can be more disconcerting than text lopped off before the end of the li
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