I am looking for a graph theory and combinatorics text for someone with limited background in linear algebra(I am not yet into college math;I have only read a bit of group theory and completed single variable calculus).I did study some combinatorics while preparing for the mathematical olympiads though.
I am not new to proofs but I am looking for a short text(perhaps, less than 300 pages) written rigorously with good but not exceptionally hard problems,aimed perhaps at undergraduates.I want the focus of the book to be graph theory though.
Thanks!