int main()
{
int d;
printf(“enter size of the string\n”);
scanf(“%d”,&d);
char a[100];
char *p;
p = malloc(sizeof(char)*d);

printf(“enter the string\n”);
fflush(stdin);
fgets(p,d,stdin);                             //didn’t worked with gets(p)?????????
int i,j,count=0,flag=0;
for(i=0;i<=”;i++)
{
for(j=0;j<i;j++)
{
if(*(p+i)==a[j])
{
flag=-1;
}
}
if(flag==0)
{
a[count++]=*(p+i);
}
flag=0;
}
printf(“modified array is \n”);
for(j=0;j<”;j++)
{
printf(“%c”,a[j]);
}
}

count=0

while (:)

do

while ($count!=3)

do

echo Enter Password

read pss

if [$pss!=$pswrd]

then

echo incorrect password try again

else

echo welcome

fi

`expr $count + 1`

done

echo want to change the password press y or n

read change

case $change in

yes|y|YES|Yes )

echo “Enter New Password”

read pswrd;;

[nN]* )

echo as you wish ;;

* ) echo “wrong choice”;;

esac

echo want to exit press y or n

read terminate

case $terminate in

yes|Y|y|YES )

echo BYE

exit 0;;

[nN]* )

echo welcome again;;

* ) echo wrong choice;;

esac

done

exit 0

………………..
error in first nested loop  ??????????