Official algorithmic problem description and constraints.
Let B be an array of size M (M≥2). We define f(B) as ∑i=1M−1(Bi+Bi+1)
You are given an array A of size N, and an integer K.
Find the maximum value of f(C) where C denotes a K-sized subsequence of array A.
Detailed video explanations, mathematical intuition, and clean C++ implementation code.
