Compilare: user.cpp: In function ‘int main()’: user.cpp:10:20: warning: unused variable ‘q’ [-Wunused-variable] char s[20],*p,*q; ^ user.cpp:11:51: warning: unused variable ‘t1’ [-Wunused-variable] int i,n=0,st1[30000],st2[30000],j,s1=0,s2=0,t,t1=1,ok,ok1=1,n1; ^ user.cpp:11:59: warning: variable ‘ok1’ set but not used [-Wunused-but-set-variable] int i,n=0,st1[30000],st2[30000],j,s1=0,s2=0,t,t1=1,ok,ok1=1,n1; ^