Given a list of tasks and a number n, determine the minimum number of CPU intervals required to complete all tasks, respecting the constraint that the same task must be separated by at least n intervals.
Given a list of words and an integer k, return the k most frequent words in the list. The words should be sorted by their frequency in descending order. If two words have the same frequency, they should be sorted lexicographically.
You are given a string s consisting of lowercase English letters. The task is to rearrange the characters of the string such that no two adjacent characters are the same. Return any valid rearrangement of the string, or return an empty string if it is not possible to rearrange the characters in such a way.
You are given a list of count-paired domains, where each entry consists of a number followed by a domain name. The number represents the number of visits to that domain. A domain may also have subdomains, and visiting a subdomain also counts as visiting its parent domains. Your task is to return the count of visits for each domain and its subdomains.
Given an integer n, check if it is possible to reorder its digits (in any order, including the original order) to form a number that is a power of two. Leading digits cannot be zero in the reordered number.
We are given a run-length encoded array where every even-indexed element specifies how many times the following odd-indexed element (a number) is repeated in the original sequence. Your task is to implement an iterator that can return the next ’n’ elements from the decoded sequence when requested.
