Broken exercise 11.4

[Anniepoo]

In section 11.4 of the tutorial, you examine uses of tuples_in. I have tried to write a program for exercise 1 of that section, using tuples_in, but I encounter the dreaded ‘Arguments are not sufficiently instantiated’ error. I wrote a successful version of the program using recursion (i.e. define a one-ride path; then a path from A to B is a one-ride path from A to I and a path from I to B), but I just used member to check that each leg is a valid ride.

richard cameron

[Anniepoo]

can't see needing to change tutorial here, closing