Compilare: user.cpp: In function ‘int main()’: user.cpp:71:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0 ; i < moves.size() ; ++i) ^ user.cpp: In function ‘void solve(int)’: user.cpp:19:25: warning: ‘fi’ may be used uninitialized in this function [-Wmaybe-uninitialized] int i , j , minim , fi , fj; ^ user.cpp:19:30: warning: ‘fj’ may be used uninitialized in this function [-Wmaybe-uninitialized] int i , j , minim , fi , fj; ^