What's the time complexity of the below operations:

a$).$ for $($let $ii=n$;$i>0$;$i=\frac{i}{2}i=n$;$i>0$;$i=\frac{i}{2}j=0$;$jj=0$;$j$

$cj=1$;$ji=1$;$i\{$:$i=1$;i cout $i$; $\}$

$b$