![]() ![]() The macro is somewhat misnamed it should be something more like BUILD_BUG_OR_ZERO, rather than. This is, in effect, a way to check whether the expression e can be evaluated to be 0, and if not, to fail the build. Next C Programming Exercise: Product of four adjacent numbers in a 20x20 grid.Ĭ Programming - What is ":-!!" in C code? Previous C Programming Exercise: Find the product xyz. Write a C programming to find the sum of all the primes below ten thousand.Ĭontribute your code and comments through Disqus. The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. ![]() However, 6 is composite because it is the product of two numbers (2 × 3) that are both smaller than 6. For example, 5 is prime because the only ways of writing it as a product, 1 × 5 or 5 × 1, involve 5 itself. A natural number greater than 1 that is not prime is called a composite number. C Programming Challenges: Exercise-26 with SolutionĪ prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.
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