Compilare: user.cpp: In function ‘double solve(int, int)’: user.cpp:36:28: warning: left shift count >= width of type [enabled by default] double dist= (1 << 52); ^ user.cpp:60:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<aux.size(); i++) ^ user.cpp:61:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=1; j<8 && i+j<aux.size(); j++) ^