Module Rerooting

Rerooting

**Frequency: 3/10** Reroot the tree to calculate new answer for the new root.

Resources

- [USACO: DP on Trees - Solving For All Roots ](https://usaco.guide/gold/all-roots?lang=cpp)

Problems

Tree distance 112 / 118 1400
Tree distance 2 110 / 110 1500
Tree weight 78 / 83 1600
World tree 13 / 15 2000