I re$-$uploaded it because I wanted to hear your detailed answer. Especially, please explain in detail about number $3.$

#include

#include

#define N $10//$ Line$1$

int main$()\{$

unsigned char i;

char$*$ d;

unsigned char sum $=0$;

d $=($char$*)$malloc$($N $*$ sizeof$($char$))$;

for $($i $=0$; i $<$ N; i$++)*($d $+$ i$)=$ i;

for $($i $=0$; i $<$ N; i$++)$ sum $+=$d$[$i$]$;

free$($d$)$;

printf$("$sum is $\%$d

$",$ sum$)$;

$\}$

$(1)$what is the value printed by the printf$()$statement$?$

$(2)$If #define N $100$is used instead of Line$1,$would sum have the intended result? If not, how would you fix that problem?

$(3)$If #define N $1000$is used instead of Line$1,$what problem would additionally emerge? How would you fix those problems?