Solution: Number of Longest Increasing Subsequence
Explore how to determine the number of longest strictly increasing subsequences in an integer array using dynamic programming. Learn to track subsequence lengths and counts with two arrays, understand the algorithm's logic for extension and accumulation, and grasp time and space complexity analysis related to this method.
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Statement
Given an integer array nums, return the number of longest strictly increasing subsequences it contains.
A subsequence is formed by choosing elements from the array while keeping their original order, and it is considered strictly increasing if every next element is greater than the previous one.
Constraints:
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