Like all IDEs, Code::Blocks is effectively a front for the clang, minGW, or gcc compiler lurking somewhere under its skin. While you don’t use these command line tools directly, you can control their options and settings from within the IDE.
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The traditional C compiler is cc. Its GNU replacement in the Linux world is gcc. A better option is the LLVM clang compiler. As commands typed at a prompt, you control these compilers by setting command line options or switches.
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The challenge for this month’s Exercise is to discover those values in the range 1 to 999 that have the highest number of factors. Never mind the math! Let C and the computer do the work for you.
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In last week’s Lesson, I covered how to obtain the number of elements in an array. This process is the first step to emulating the foreach keyword in the C language.
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If given a pad, pencil, and a factor problem years ago, I would have found doing anything else in the world more exciting. Math is not my forte, yet it remains a curiosity. Especially with The Power Of The Computer, performing math exercises is more of an interesting challenge than a mental ordeal.
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C has three looping keywords: do, for, and while. These keywords construct a block of statements that repeat, hopefully but not necessarily with a terminating condition. Other programming languages offer additional looping keywords, including the popular and useful foreach.
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A harmonic series is a mathematical contraption that deals with cascading fractions. Like the Fibonacci series, I thought I could easily code a harmonic series in C — which I did, but not before reading up on the topic of divergence.
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My maths grades were horrible. I understand the concepts, but failed at solutions in class because I’d make silly mistakes. Computers make mistakes only when they’re programmed to do so, which means maths are far more enjoyable for me as a coder. For example, take the Fibonacci sequence.
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This month’s Exercise is to create a program that converts weight measurements by using this format:
nnnFT
Where nnn is a value, F is the unit to convert from, and T is the unit to convert to. This problem is more of an input-parsing exercise than a straight conversion.
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The Chicken McNuggets problem, presented in last week’s Lesson, shows code that outputs the highest McNuggets number from 1 to 100. This value isn’t a combination of 6, 9, or 20, the number of the pieces offered in the McDonald’s Chicken McNuggets packages.
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