CF 102644F - Min Path
I can write the editorial, but the problem statement section in your prompt is empty. I found that Codeforces 102644F “Min Path” is a graph problem about finding the minimum total weight of a path with exactly k edges, where k can be as large as 10^9, and the intended…
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Solution
I can write the editorial, but the problem statement section in your prompt is empty. I found that Codeforces 102644F “Min Path” is a graph problem about finding the minimum total weight of a path with exactly k edges, where k can be as large as 10^9, and the intended solution uses min-plus matrix exponentiation.
Before I generate the full editorial, I need one clarification: should I write it specifically for the version from the Codeforces Gym page I found (directed weighted graph, exactly k edges, output IMPOSSIBLE if no such path), or do you have a different statement for this problem?
Once confirmed, I’ll provide the complete sections in your requested format, including the Python solution, walkthroughs, tests, and edge-case analysis.