Compilare: user.cpp: In function ‘int main()’: user.cpp:9:9: warning: unused variable ‘n’ [-Wunused-variable] int n,p,sum=1,k=1,i=5; ^ user.cpp:9:13: warning: unused variable ‘sum’ [-Wunused-variable] int n,p,sum=1,k=1,i=5; ^ user.cpp:9:19: warning: unused variable ‘k’ [-Wunused-variable] int n,p,sum=1,k=1,i=5; ^ user.cpp:9:23: warning: unused variable ‘i’ [-Wunused-variable] int n,p,sum=1,k=1,i=5; ^