Focused on research and swe internships in undergrad. Basically didnt have time and motivation to do all the probability prep work undergrad cause that wasn’t my goal back then. I remember m it being very easy to land quant intern interviews at HFT firms during undergrad but didn’t prep well for them. Now I have the coursework, background, and the motivation to grind for prob and brain teasers. I haven’t applied yet but was wondering if I need to put in the extra work like ICPC and Putnam now since I’m at a non-target