can someone kindly help to do this problem:
Write a program use C++ language with Recursion algorithm to do this exercise. Prefer compile with Visual C++ or DevC
Snowflake.h and image included in attachment file
2. What changes have to made in the program in snowflake.h to draw a line as in file fig521.jpg? Try it and experiment with other possibilities to generate other curves.

That sure looks like an assignment to me. We generally don't do your assignements for you. If you want help with it, you give it a start and then ask questions about the problems you're having. (And what's with the poll at the top of your plea for help?)