Hi, I made a graph problem that I couldn't solve and I was wondering if it's solvable at all, so I'd appreciate if someone solved it (doesn't have to be solvable in the given constraints just any solution).

given a rooted weighted tree made of $$$n$$$ nodes you start from the root and go to any adjacent node you are given $$$m$$$ resturants each one will be on a node you are required to print the minimum cost to visit $$$k$$$ resturants (you can visit an edge more than once) $$$1\le n \le 10^5$$$, $$$m \le n$$$, $$$k \le m$$$, $$$1 \le cost \le 10^9$$$