D can now work it out. He knows that M would still be uncertain if Mar, Sep or Dec. The fact M's worked it out means it must be June. D already knows the day, of course.

Books for Quant Finance Interviews. ( comments on the usefulness are based on the score of 0-5). Brain Teasers I will be graduating in Spring 2022 with a degree in Computer Science and Mathematics from Northeastern University. Despite having had more than a year’s worth of internship experience, I have been at a slight fork in the road in terms of knowing the exact job/career path I want to specialize in. I have concocted a hybrid interview prep curriculum to ensure I am prepared for both interviews. The benefit is that practicing the mathematical brain-teasers along with algorithms and data structures will prepare me for machine learning engineer interviews at big tech companies. Therefore, I believe this interview prep curriculum to be a sound hedge that will increase my market value regardless of whether I make it into a hedge fund or not. Quantitative Developer Archetype If day-of-month would have been 7 C knows bday is June 7. If day-of-month would have been 2 C knows bday i Dec 2. Otherwise, C would not know. C could only know if month is June or Dec, it isn't. A told you only the month of his birthday, and told your colleague C only the day. After that, you first said: "I don't know A's birthday, C doesn't know either." After hearing what you said, C replied: "I didn't know A's birthday, but now I know it." You smiled and said:"Now I know it too." After looking at the 10 dates and hearing your comments, your assistant wrote down A's birthday without asking any questions. So what did the assistant write?Quantitative Portfolio Management (Incredible book with interview questions scattered throughout which will also give you a highly developed ability to discuss statistical arbitrage and explain most of the core quant finance topics relevant to hedge fund/ asset management) MD5 of a better version of this file (if applicable). Fill this in if there is another file that closely matches this file (same edition, same file extension if you can find one), which people should use instead of this file. If you know of a better version of this file outside of Anna’s Archive, then please upload it. We can exclude Dec and June months only because the month-knowing person tells us C does not have a chance. And again, Dec and June would have given C a possiblity to know. But exactly because the bday is in Mar or Sep, C doesn't initially know for sure. Try writing C++ using only objects. Templates are nice to have as well. Use Design Patterns whenever you can.

Let D be the day of the month of A's birthday, we have D belongs to the set {1,2,4,5,7,8}. If the birthday is on a unique day, C will know the A's birthday immediately. Among possible Ds, 2 and 7 are unique days. Considering that you are sure that C does not know A's birthday, you must infer that the day the C was told of is not 2 or 7. Conclusion: the month is not June or December. (If the month had been June, the day C was told of may have been 2; if the month had been December, the day C was told of may have been 7) A preliminary quant interpersonal interview is typically 45-60 minutes, and may be in person or virtual. For in-person interviews, you may be handed a pencil and paper or markers for a whiteboard for your calculations. For virtual interviews, you might work on a shared virtual whiteboard or Google Doc. I expect the calculus and linear algebra review to go smoothly. I recall most of this content so the preparation process will simply entail solving the questions from the prep book and actively seeking tough questions from my old textbooks. MaterialsAt this point, I will wrap up my interview prep by finishing Grokking The Coding Interview, and aiming to hit level 99 on math-trainer. Materials Many quant interviews and big tech interviews have been known to ask estimation-based questions. These include ‘how much should you charge to wash every window in Seattle’ and the like. There is an abundance of questions available online for practice. These will be the final and lowest priority aspect of my interview prep. Solid state physics Quantum theory Chemical bonds SCIENCE Physics Condensed Matter Física do estado sólido Mecânica quântica