def delete$\_$repeated$\_$substr$($x: int, y: str$)->$ str:

$\text{'}\text{'}\text{'}$Delete all substrings where the same character is repeated at least x times in a row.$\text{'}\text{'}\text{'}$

Starting from the top and considering each testcase in turn, please mark the $4$ options that add nothing to what was covered by the previous tests.

x $=1,$ y $=,$ return: $$x $=1,$ y $=$a$,$ return: $$x $=1,$y $=$aa$,$ return: $$x $=1,$ y $=$b$,$ return: $$x $=2,$ y $=$a$,$ return: $$a$$x $=2,$ y $=$aa$,$ return: $$x $=2,$y $=$abba$,$ return: $$aa$$x $=2,$ y $=$aabbcd$,$ return: $$cd$$x $=3,$ y $=$yaaas$,$ return: $$ys$$x $=3,$ y $=$arto$!!!!!,$ return: $$arto$$x $=3,$ y $=$suoaaami$,$ return: $$suomi$$x $=3,$ y $=$aaabbbccddef$,$ return: $$ccddef$$

def add$\_$key$\_$values$($x: str$)->$ dict$[$str$,$ int$]$:

$\text{'}\text{'}\text{'}$Return a dictionary where the keys are the distinct characters appearing in x and the values are how many times they appear.$\text{'}\text{'}\text{'}$

Starting from the top and considering each testcase in turn, please mark the $6$ options that add nothing to what was covered by the previous tests.

x $=,$ return: $\{\}$x $=$a$,$ return $\{$a$$: $1\}$x $=$ab$,$ return $\{$a$$: $1,$b$$: $1\}$x $=$aab$,$ return $\{$a$$: $2,$b$$: $1\}$x $=1233,$ return: $\{1$: $1,2$: $1,3$: $2\}$x $=1223334444,$ return: $\{1$: $1,2$: $2,3$: $3,4$: $4\}$x $=$cabba$,$ return: $\{$c$$: $1,$a$$: $2,$b$$: $2\}$x $=$qnwhnwq$",$ return: $\{$q$$: $2,$n$$: $2,$ w$$: $2,$h$$: $1\}$x $=$a$,$aa$33$b$,$ return $\{$a$$: $3,,$: $1,3$: $2,$b$$: $1\}$x $=$midterm$",$ return $\{$m$$: $2,$i$$: $1,$d$$: $1,$t$$: $1,$e$$: $1,$r$$: $1\}$x $=$csc$108$ishard$,$ return $\{$c$$: $2,$s$$: $2,1$: $1,0$: $1,8$: $1,$i$$: $1,$h$$: $1,$a$$: $1,$r$$: $1,$d$$: $1\}$