master_yoda_1·6 anni fa·discussHackers works on things which are not trivial.so certainly not a hacker
master_yoda_1·6 anni fa·discussThese are leetcode equivalent for data science and quant. So invest time only interested.
master_yoda_1·7 anni fa·discussAll of Statistics: A Concise Course in Statistical Inference https://www.amazon.com/All-Statistics-Statistical-Inference-...