Compilare: user.cpp: In function ‘void distante()’: user.cpp:97:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<m[i].size();j++) ^ user.cpp:87:11: warning: variable ‘l’ set but not used [-Wunused-but-set-variable] int x,l; ^ user.cpp: In function ‘void det_inter()’: user.cpp:63:19: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] nod[p].y=y; ^ user.cpp:62:21: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] nod[++p].x=x; ^