Hello Codeforces. I need your advice.

I'm good at math and this year I will go JBMO (Junior-Balkan-Math-Olympiad) (yes, my age is under 15), but not sure about BMO or IMO. I participated in APMO too. It was really hard for me, because I'm preparing for Junior difficulty contests. I managed to score 8 points (P1 — 7, P3 — 1).

So, there are many math problems in Codeforces, but if their difficuly ≥ Div.2 C, I can't solve most of them. So, I need your help, how do you use math in programming? And sometimes I can find their math side solution but can't implement code.

I know some guys which they have IMO and IOI (both) experience. One of them is zscoder. If you give some advice, I will be happy.

I also want to note that I'm specialist in my real account (this is fake one). Thanks in advance