In emoji$\_$invertChar, you will be inverting an emoji. You are provided with a string in this function. You have to invert only the first character of this string $($which may be up to $4$ bytes$)$ only if it is an emoji. The inversion is a semantic, so you should invert the meaning of the emoji $($NOT flipping or "inverting" the bits$).$ You will have to invert $""($U$+1$F$60$A$)$ to some sort of sad face $($your choice!$).$ In addition to $"",$ you need to invert at least five other emojis of your choice $($and it$$s okay to do more than just five$).$

Here's my code thus far:$//$ Modify the UTF$-8$ string 'utf$8$str$\text{'}$ to invert the FIRST character $($which may be up to $4$ bytes$)$

II in the string if the first character is an emoji. At a minimum:

$//-$ Choose at least five more emoji to invert.

void emoji$\_$invertChar$($unsigned char $*$utf$8$str$)\{$

unsigned char ${?}^{**}s=($unsigned char$)(*$utf$8$str$)$;

int length $=$ strlen$($s$)$;

for $($int $i=0$; $i$ length; $i++)\{$

$//$ do something

$\}$

$\}$