I've created an iterative function which outputs 4 3 2 1 0 1 2 3 4.If I want a recursive function that does the exact same thing, how should I think?
I had an exercise and tried to use parts of code I found here on another person's question, but I found that I needed a part of code that I have no idea why I do.
Reading through SICP Distilled and trying to wrap my head around iterative vs recursive processes. The example given is:
I just saw something like:What does the || mean in a return statement? Here, m is a function; s1 and s2 are strings.
Although in some cases I might want to allow deep recursions in my code, I want to be able to disable it in certain cases (like while testing).
Below is the recursive function for sum of N first natural numbers.Input: 5If i use --n then the output is 10, but when I replace --n with n - 1 then the correct result is returned (15). Why the difference?
So I tried to build the (!!) function as already defined in GHC.List recursively. I want to extract the n-th element of a list and return that. Here's what I got first:
I've experimenting with C++17 lately and found this:Trying to call recurse<4>(); will lead tofatal error: template instantiation depth exceeds maximum of 900 (use -ftemplate-depth= to increase the maximum) return recurse<i - 1>();
One limitation of implementing polymorphism in a language via monomorphisation (and monomorphisation only) is that you lose the ability to support polymorphic recursion (e.g. see rust-lang #4287).
I have nested array data and I would like to extract all nested arrays to be siblings of their parent. I am pretty close, but I am getting an extra empty array in the results and I cannot figure out where it is coming from or how to get rid...