Question $2$

What will be printed after executing the following $C++$ code?

int $tt$;

int dd$]=\{3,4,6\}$;

int rest;

for $($int $i=2$;$i0$;$i-)$

rest $+=dd[i]-tt[i]$;

cout $$ rest $<mtext\; id="EditorElement\_2927064"></mtext><mi\; id="EditorElement\_2927065">\text{'}</mi><mtext\; id="EditorElement\_2927066"></mtext><mi\; id="EditorElement\_2927067">\text{'}</mi>$In$\text{'}$;

$19$

$9$

$42$

$15$

None