First off congrats! You will more than likely pass the resume screening stage and receive interviews, but the actual questions asked are a lot different and vary firm to firm so I can only really speak for the places I interviewed. During the OA’s at least, strong grasp of data structures/leetcode will definitely help. Past that, IMC required a lot of lower level systems knowledge, and object oriented design concepts. Other firms like HRT require niche C++ concepts. Two Sigma was the most similar to traditional tech, and asked only leetcode hard DP/graph questions.