CS is becoming increasingly difficult for Asian males. I wonder if it would be a good idea to apply to another major to schools where you can switch major after you got there.
As a parent with two CS kids in college, the warning signs for me are 1. 2Bs in Math. 2. 770 in math. 770 is a great score, but not for Asian males who want to be CS major. 3. How can you expect to be an AIME qualifier? Sorry if I am blunt, but getting Bs in 11th grade math is not a path to get AIME qualified.
Best of luck!