Compilare: user.cpp: In function ‘int main()’: user.cpp:42:30: warning: unused variable ‘c’ [-Wunused-variable] int i,j,x,cat,rest,t1,t2,c,aux,cnt,poz,ok,len; ^ user.cpp:42:32: warning: unused variable ‘aux’ [-Wunused-variable] int i,j,x,cat,rest,t1,t2,c,aux,cnt,poz,ok,len; ^ user.cpp:42:36: warning: unused variable ‘cnt’ [-Wunused-variable] int i,j,x,cat,rest,t1,t2,c,aux,cnt,poz,ok,len; ^ user.cpp:42:40: warning: unused variable ‘poz’ [-Wunused-variable] int i,j,x,cat,rest,t1,t2,c,aux,cnt,poz,ok,len; ^ user.cpp:42:44: warning: unused variable ‘ok’ [-Wunused-variable] int i,j,x,cat,rest,t1,t2,c,aux,cnt,poz,ok,len; ^ user.cpp:42:47: warning: unused variable ‘len’ [-Wunused-variable] int i,j,x,cat,rest,t1,t2,c,aux,cnt,poz,ok,len; ^