Insights From Problem: Codeforces 1746D: Paths on the Tree (View all problems)
- Take advantage when there are TWO choices available for some objects. This can be an indication to use DP. Consider storing the difference between the two choices and sorting to determine the optimal choices. by mathmastersd
- 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
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