I am learning rust, Run the following code. I want to change each value of the array use rand::Rng; // fn main() { // let mut x: [i32; 30] = [1 ...

I try to use iterator on vector slices, but it just doesn't work. My code are as follows pub fn three_sum(nums: Vec<i32>) -> Vec<Vec&l ...

I have properties in enum and I need an array of those constants to match them with String key. I need to iterate through them automatically. I cannot ...

I have created a pandas dataframe using this code: The dataframe looks like this: I need to create a field called col2 that contains in a list ( ...

I've done some exercises before where I loop through maps no problem. Now that I'm doing so in a class, I'm getting strange errors that I don't unders ...

Consider the following code: struct MediaKind; struct OtherFields; enum Media { Single(MediaKind), Group(Vec<MediaKind>, OtherFields), ...

I have a vector of tuples: let steel_forces = [(1, 2, 1), (3, 4, 2), (5, 6, 3)]; Is there a way to obtain summation of single components in a single ...

I am writing a program which needs an iterator which starts at the nth value in an array and steps by m giving the correct index (n + xm) of the eleme ...

I am trying to reorganize a temperature data set to get it in the same format as other data sets I have been using. I am having trouble iterating thro ...

What is (&v) actually doing in this code? let v = vec!["hello", "viktor"]; let mut iterator = (&v).into_iter(); // Iter<&str> let ...

I have some pipeline which manipulates an iterator to a very big data set, and at the end, I wish to just keep the N top values. I wrote a wrapper ar ...

In a tarball files are sorted by the time when they're pushed in. In the following example they are not sorted alphabetically, but in push-order. # t ...

I'm trying to determine if there is a way to access an index essentially by making a list of lists, where each inner list has a tuple that provides es ...

I'm trying to make an iterator that passes over a string view mostly character-by-character with a few special cases and what I tried was the followin ...

As you can see in python code below if condition is satisfied, iteration skips 1, 5, and 9. I tried this. But it was no use. I get en error:Er ...

I have a function that receives Iterator<Item=AsRef> and I wanted to get an array of substrings form this iterator. The issue is that when mappi ...

My goal would be to have an iterator that iterates over elements of type T, but in my case T is not really usable for my end-users. Instead, end-users ...

Hi I read in C++ primer that adding elements to a vector invalidates the iterators. I don't understand why deleting elements doesn't invalidate them a ...

Using a library like https://www.npmjs.com/package/cartesian-product-generator I am able to generate a cartesian product iterator. This is necessary w ...

I am attempting to get the cartesian product of a variable number of lists. The lists will be 1 million rows each so using itertools.product would not ...