triangle inequality theorem

good solution, is not necessary a complex data structure to solve this problem
just an array of booleans
great work guy!!

great solution, but you don't need getline
cause, getline is more powerfull for different delimiters

in this case a clear stream based solution is: while(stream >> buffer)

it would be neat because you just need blank space delimiter

and this works for streams with delimiters like: ' ', TAB and Return Line

best regards