Compilare: user.cpp: In function ‘int main()’: user.cpp:12:12: warning: unused variable ‘l’ [-Wunused-variable] int i,j,k,l; ^ user.cpp:29:8: warning: unused variable ‘b’ [-Wunused-variable] int a,b,p; ^ user.cpp:29:10: warning: unused variable ‘p’ [-Wunused-variable] int a,b,p; ^ user.cpp:31:6: warning: variable ‘kap’ set but not used [-Wunused-but-set-variable] int kap; ^