Permutations
A journey into permutations is a journey into how the elements of a sequence can be arranged. With the vastness of the sequences and datasets handled by developers today, the ability to organize, shuffle, rotate, and switch elements around becomes a fascinating exercise and a critical requirement for many applications. The C++ STL, with its power-packed permutation algorithms, offers a path to unlock this potential effortlessly. In this section, we will learn how to generate, manipulate, and rotate permutations, along with practical examples.
Generating permutations with std::next_permutation
Imagine listing all possible permutations of a dataset, analyzing them, and perhaps using them for a brute-force solution to a problem. The STL provides std::next_permutation for this exact purpose. Given a range, this function rearranges its elements to the next lexicographically greater permutation. When all permutations have been exhausted, the function returns false, offering...
