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Solution: Number of Longest Increasing Subsequence

Explore how to determine the count of longest strictly increasing subsequences within an integer array by applying dynamic programming. Understand the process of tracking subsequence lengths and counts to build an optimal solution with O(n²) time complexity.

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:

  • 11 \le ...