Codeforces Round 876 (Div. 2) Solutions
A. The Good Array Tags: greedy, math Problem: For any (i \in {1,2,\dots,n}), the array (a) must have at least (\lceil \frac{i}{k} \rceil) ones among its first (i) elements and also atleast (\lceil \frac{i}{k} \rceil) ones among its last (i) elements. Solution: Special case (k=1): The positions where...