Q$4$: Continue of previous question. $(20$pt$)$

$1.$ Add insert$($index$)$ for DynamicArray

$2.$ Add remove$($index$)$ for DynamicArray

Use following main$()$ to test your function.

int main$()\{$

DynamicArray s;

for$($int i$=0$;i$<10$;i$++)$

s$.$add$($i$+65)$;

s$.$output$()$;

s$.$remove$(5)$;

s$.$output$()$;

s$.$insert$(8,\text{'}?\text{'})$;

s$.$output$()$;

s$.$remove$(20)$;

s$.$insert$(20,\text{'})\text{'})$;

s$.$output$()$;

$\}$

Output from main:

A B C D E F G H I J

A B C D E G H I J

A B C D E G H I $?$ J

Invalid index for removal.

Invalid index for insertion.

A B C D E G H I $?$ J

Answer: