> i am just wondering what is the int for which it is one of the argument of
> traverse_f. i do know the Graph& argument.
>
The int is the starting vertex for your travesal.
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| o\ /o || John C Wu || o\ /o || Engineering Science || o\ /o |
| ---- || || ---- || University of Toronto || ---- |
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"Memory is like an orgasm. It's a lot better if you don't have to fake it."
Seymour Cray commenting on virtual memory