my solution : (WA)
I am getting WA . I am unable to figure out what is wrong in my solution.
I have used lazy propagation . while making the segment tree i m storing the value of 1 at leaves if the number is prime( to keep the count easy) or 0 if they are not prime. While updating the range i am adding 1 in [L,R] if the updated value is prime.
Can someone tell what’s wrong in my code.
Edit : I got the error. Ignore the post