CareerCup

you would get better answers if you can split them and post as different questions...!

ohk thanks for suggestion.I'll do the same.

void main()
{

int a[] = {0,1,1,0,1,0,1,0,0,1,1,1,0} ,len =0;
len = sizeof(a) / sizeof(a[0]);
int *last;
last = a;
int flag = 0;

for(int i =0 ;i<len; i++)
{
if(a[i] == 1 && flag == 0)
{
last = a + i;
flag = 1;
}
else
{
if(a[i] == 0 && flag == 1)
{
a[i] = a[i]+1;
*last = 0;
last++;
}
}
}

for(int i =0; i<len; i++)
printf("\n%d",a[i]);
}