Compilare: user.cpp: In function ‘int main()’: user.cpp:13:9: warning: unused variable ‘x’ [-Wunused-variable] int x,i,cnt=0,k,j,n,m; ^ user.cpp:13:11: warning: unused variable ‘i’ [-Wunused-variable] int x,i,cnt=0,k,j,n,m; ^ user.cpp:13:13: warning: unused variable ‘cnt’ [-Wunused-variable] int x,i,cnt=0,k,j,n,m; ^ user.cpp:13:19: warning: unused variable ‘k’ [-Wunused-variable] int x,i,cnt=0,k,j,n,m; ^ user.cpp:13:21: warning: unused variable ‘j’ [-Wunused-variable] int x,i,cnt=0,k,j,n,m; ^ user.cpp:13:23: warning: unused variable ‘n’ [-Wunused-variable] int x,i,cnt=0,k,j,n,m; ^ user.cpp:13:25: warning: unused variable ‘m’ [-Wunused-variable] int x,i,cnt=0,k,j,n,m; ^