Compilare: user.cpp: In function ‘int main()’: user.cpp:14:27: warning: unused variable ‘ok1’ [-Wunused-variable] int cnt1=n,cnt2=n,ok1=1,ok2=1,ok3=0,ok4=0; ^~~ user.cpp:14:33: warning: unused variable ‘ok2’ [-Wunused-variable] int cnt1=n,cnt2=n,ok1=1,ok2=1,ok3=0,ok4=0; ^~~ user.cpp:14:39: warning: unused variable ‘ok3’ [-Wunused-variable] int cnt1=n,cnt2=n,ok1=1,ok2=1,ok3=0,ok4=0; ^~~ user.cpp:14:45: warning: unused variable ‘ok4’ [-Wunused-variable] int cnt1=n,cnt2=n,ok1=1,ok2=1,ok3=0,ok4=0; ^~~