Create ArrayList from array

I have an array that is initialized like:

I would like to convert this array into an object of the ArrayList class.

    Source

Why is it faster to process a sorted array than an unsorted array?

Here is a piece of C++ code that seems very peculiar. For some strange reason, sorting the data miraculously makes the code almost six times faster.

Without std::sort(data, data + arraySize);, the code runs in 11.54 seconds. With the […]