What is {solves} of {makes use of} of {link-state routing protocol} ?
What does the link state routing protocol solve?
what is solves os make use of  link state  routing protocol?
SELECT ?r WHERE { ?n property:computes_solution_to ?r . resource:link-state_routing_protocol property:uses ?n }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1755411> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2283>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2159> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q1755411 wdt:P2283 ?X . ?X wdt:P2159 ?answer}
shortest path problem pathfinding single-source shortest path problem