Compilare: user.cpp: In function 'void solve(std::vector<int, std::allocator<int> >, std::vector<Sarje, std::allocator<Sarje> >, int, std::vector<int, std::allocator<int> >)': user.cpp:30: warning: comparison between signed and unsigned integer expressions user.cpp:33: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:87: warning: comparison between signed and unsigned integer expressions