$[$Prob$.6.$ Fundamental of Programming$]$

$(25$p$)$ Which of the four statements below have the same semantics as the following statement?

Choose all of them.

while $(--$counter $1)$

printf$("\%$s

$",$ counter $\%2?$ "even" : "odd"$)$;

$($a$)$ while $(--$counter $1)$

if $($ counter $\%2)$

else

printf$($ "even$)$;

printf$("$odd$")$;

$($b$)$ while $($ counter $1)$

if $($counter $\%2)$

else

printf$($ "even$)$;

printf$("$odd$")$;

$--$counter;

$($c$)$ while $($ counter $1)\{$

if $($ counter $\%2)$

else

printf$($ "even$)$;

printf$($ "odd"$)$;

$--$counter;

$\}$

$($d$)$ do $\{$

printf$("\%$sln$",$ counter $\%2?$ "odd" : "even"$)$;

$--$counter;

$\})$ while $($ counter $2)$;