Compilare: user.cpp: In function 'int bin(std::vector<int, std::allocator<int> >)': user.cpp:25: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'std::vector<int, std::allocator<int> > edit(std::vector<int, std::allocator<int> >, Sarje)': user.cpp:34: warning: comparison between signed and unsigned integer expressions user.cpp:37: warning: comparison between signed and unsigned integer expressions user.cpp:44: warning: comparison between signed and unsigned integer expressions user.cpp:45: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void solve(Node*)': user.cpp:54: warning: comparison between signed and unsigned integer expressions