Compilare: user.cpp: In function ‘void stergere()’: user.cpp:27:9: warning: unused variable ‘p’ [-Wunused-variable] int p=1,c=2; ^ 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:110:11: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<sol; ^