Given an integer n, return whether its prime factors only include 2, 3 or 5. Constraints n ≤ 2**31 -1 Example 1 Input n = 10 Output true Explanation …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given two sorted list, if we want to merge it, we can do this optimally using two pointers in O(N+M) …
December 9, 2020
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You are given a lowercase alphabet string text. Return a new string where every character in text is mapped to its reverse in the alphabet, so that a becomes …
Teaching Kids Programming: Videos on Data Structures and Algorithms We analyse an algorithm for its complexity in terms of runtime and the space allocated. Algorithms can be compared by …
Given two integers num and k, return the largest product of k contiguous digits in num. Note: num is guaranteed to have >= k digits. Example 1 Input num …
Given a string s and an integer n, rearrange s into n rows so that s can be read vertically (top-down, left to right). Constraints Length of s ≤ …