Viewing insights from Codeforces 1801D: The way home that are similar (thus shared) with only this insight from Codeforces 1746D: Paths on the Tree: A greedy strategy for graphs (and probably more generally) is to first take care of things at the bottom that will NOT affect others. Then, work your way upwards. by mathmastersd
- Use Dynamic programming and djikstra algorithm by pranav_02
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