Dec 15, 2012 · How to split vector according to indices given in another vector? 1. Split vector to multiple array/vector ...

I am trying to split a vector into two separate arrays. The current int vector contains an element per line in a text file. The text file is a list of random integers. How I'm planning to do it: My current idea is to create two regular int arrays, then iterate over the entire vector and copy n/2 elements to each of the arrays. What I would like ...

Feb 8, 2013 · Is there any other constant time way to split a vector other than using the following. std::vector<int> v_SplitVector(start , end); This would take a complexity of O(N). In this case O(end - start). Is there a constant time operation to do …

Nov 17, 2016 · I would like to split path vector into n other vector of 10 line for example. So if size of my vector is 25, I want 2 other vector of 10 element and one vector of 5 element. What is the best way to do that ?

Aug 27, 2014 · In otherwords, you are allocating a new vector twice in your loop, and copying each element twice. By prealloating a vector above the loop you are only allocating one vector (the one that doSend recieves). To avoid copying elements twice is harder. Since you can invalidate the vector's elements, swapping and then copying is possible.

Jan 29, 2019 · I have problem to split a string vector to smaller integer vector\array. My input vector data looks like: std::vector<std::string> v(2); v[0] = "0 14 150"; v[1] = "1 2 220"; //... I know one solution, to make three arrays and to use sstream to convert data to integer. But i want to avoid making "spaghetti" code. Thank you, Peter.

Aug 9, 2010 · A simple way is to build a vector of vector to collect the different arrays.. To control the boundaries, one possibility is first to calculate the maximum size of these arrays, and then to manage two indices, one ibegin corresponding to the beginning of a subarray, and one iend corresponding to the end of the same subarray.

Jun 17, 2016 · You can do this in place with multiple calls to std::partition: // Returns iterators to the three partition points in the range template<class ForwardIt, class Which ...

My idea is to write a function, which takes a vector of images and an integer, and splits the vector into n sub-vector all having "almost equal" parts. So for example if I would like to split 11 into 3 groups it would be 4-4-3. Can you tell me how can I do it in C++? I mean, to write a function . split_vec( const vector<image> &images, int split )

Mar 19, 2022 · What is the right way to split a string into a vector of strings? Delimiter is space or comma.