Eroare de compilare in evaluator: user.cpp: In function 'void max_flow_cost(int&, int&, int, int, int (*)[256], int (*)[256], std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)': user.cpp:25: warning: comparison between signed and unsigned integer expressions user.cpp:27: error: expected primary-expression before '?' token user.cpp:27: error: expected primary-expression before '=' token user.cpp:27: error: expected `:' before ';' token user.cpp:27: error: expected primary-expression before ';' token user.cpp:49: warning: comparison between signed and unsigned integer expressions