I have a struct representing a node in a graph. All instances of this
struct store a list of references/pointers to their immediate neighbors in
the graph. The following is what the struct looks like in C++:
struct Node {
string name;
vector<Node*> neighbors;
// ...
};
Suppose I have 4 nodes marking the corners of a square, each node would
hold pointers to two neighbors. How do I represent the above struct as a
protocol buffer message?
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