Compilare: user.cpp: In function ‘int main()’: user.cpp:38:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,l,ok,r,i1,i2,ok1,aux,nr; ^ user.cpp:38:13: warning: unused variable ‘l’ [-Wunused-variable] int i,j,l,ok,r,i1,i2,ok1,aux,nr; ^ user.cpp:38:18: warning: unused variable ‘r’ [-Wunused-variable] int i,j,l,ok,r,i1,i2,ok1,aux,nr; ^ user.cpp:38:20: warning: unused variable ‘i1’ [-Wunused-variable] int i,j,l,ok,r,i1,i2,ok1,aux,nr; ^ user.cpp:38:23: warning: unused variable ‘i2’ [-Wunused-variable] int i,j,l,ok,r,i1,i2,ok1,aux,nr; ^ user.cpp:38:26: warning: unused variable ‘ok1’ [-Wunused-variable] int i,j,l,ok,r,i1,i2,ok1,aux,nr; ^