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Has anyone solved any of these two problems using Dominator Tree?
https://cses.fi/problemset/task/1703
https://cses.fi/problemset/task/1203
Unfortunately my code is failing on a couple tests.
I'd really appreciate it if anyone provides an accepted code using Dominator Tree.
Hi, Codeforces.
Recently I have been thinking of the following task:
You are given a tree with $$$N$$$ vertices, each vertex $$$v$$$ has a value $$$a_v$$$ written on it, and you have to process following query ONLINE. given two vertices $$$u$$$ and $$$v$$$, you have to output the MEX of the values on the path from $$$u$$$ to $$$v$$$. The values are not necessarily distinct.
constrains: $$$N$$$<=1e5
If anyone can share any ideas, I will be extremely grateful.
