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First solution in Clear category for How to Find Friends by tigerhu3180
def check_connection(network, first, second):
set1={first}
visited=set()
while set1:
i=list(set1)[0]
for net in network:
if i in net and i not in visited:
u,v =net.split('-')
if second in (u,v):
return True
set1.add(u)
set1.add(v)
visited.add(i)
set1.remove(i)
return False
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert check_connection(
("dr101-mr99", "mr99-out00", "dr101-out00", "scout1-scout2",
"scout3-scout1", "scout1-scout4", "scout4-sscout", "sscout-super"),
"scout2", "scout3") == True, "Scout Brotherhood"
assert check_connection(
("dr101-mr99", "mr99-out00", "dr101-out00", "scout1-scout2",
"scout3-scout1", "scout1-scout4", "scout4-sscout", "sscout-super"),
"super", "scout2") == True, "Super Scout"
assert check_connection(
("dr101-mr99", "mr99-out00", "dr101-out00", "scout1-scout2",
"scout3-scout1", "scout1-scout4", "scout4-sscout", "sscout-super"),
"dr101", "sscout") == False, "I don't know any scouts."
July 28, 2018
