Subsequence problems are common, and they are not easy. First, subsequences are harder than substrings and subarrays. A subsequence is not continuous, but a substring/subarray is continuous. Even if ...

# The Longest Increasing Subsequence (LIS) problem is a classic dynamic programming problem. # Given an array of integers, find the length of the longest subsequence that is strictly # increasing. A ...

Overview:  Covers the most frequently asked dynamic programming questions in coding interviews.Explains the core DP patterns used by Google, Amazon, Meta, ...