Compilare: user.cpp: In function ‘bool ver(int)’: user.cpp:40:18: warning: unused variable ‘i’ [-Wunused-variable] register int i,j,p,u,dr,iv,jv; ^ user.cpp:40:20: warning: unused variable ‘j’ [-Wunused-variable] register int i,j,p,u,dr,iv,jv; ^ user.cpp: In function ‘int main()’: user.cpp:60:29: warning: variable ‘iv’ set but not used [-Wunused-but-set-variable] register int i,j,x,y,dr,iv,jv; ^ user.cpp:60:32: warning: variable ‘jv’ set but not used [-Wunused-but-set-variable] register int i,j,x,y,dr,iv,jv; ^ user.cpp:81:9: warning: variable ‘minim’ set but not used [-Wunused-but-set-variable] int minim; ^ user.cpp:108:11: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<sol; ^