Compilare: user.cpp: In function ‘int main()’: user.cpp:8:33: warning: unused variable ‘u’ [-Wunused-variable] int t,n,cnt=1,cn,cnt2=0,r=0,u,p,m,ok=1,nrc=0,cr; ^ user.cpp:8:35: warning: unused variable ‘p’ [-Wunused-variable] int t,n,cnt=1,cn,cnt2=0,r=0,u,p,m,ok=1,nrc=0,cr; ^ user.cpp:8:37: warning: unused variable ‘m’ [-Wunused-variable] int t,n,cnt=1,cn,cnt2=0,r=0,u,p,m,ok=1,nrc=0,cr; ^