Find kth Permutation
Explore how to determine the kth permutation of a sequence of n elements by understanding the factorial concept and applying a recursive strategy to select elements in blocks. This lesson guides you to optimize the search for permutations beyond naive generation, helping you implement a linear time solution with clear mathematical reasoning.
Statement
Given two numbers and , find k permutation of . For , all permutations are (with ordering):
Sample input
Here 4 is the number and 8 is the k ...