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3 votes
2 answers
103 views

Fetching all nodes of a directed graph by an id of any node

Task: Rowset of all reachable(in any direction) nodes from any node in a graph. In other words I need to extract all nodes of a particular graph from a table in the database where graph specified by ...
danilabagroff's user avatar
3 votes
1 answer
544 views

Find all the countries I can visit by just crossing direct borders

I was helping on this question. There you have a table border to indicate countryA and countryB have a common border. And want ...
Juan Carlos Oropeza's user avatar