Competitive Programming Solutions: Matrix DP, Tree Operations, SCC Analysis, and Combinatorial Counting
Problem A Given an n×m matrix of 0s and 1s, you can flip any submatrix. Find the minimum number of operations to create a path from the top-left corner to the bottom-right corner that only moves down or right and traverses only 0s. (n,m\le 1000). This is a straightforward dynamic programming problem...