Harveston Asset Management interview questions

Scheduled an interview with the CEO (taking a half day leave) and got stood up "I am busy today, cannot come" with no apologies. Tried to reschedule but CEO (William Chan) responded "You don't need to come." with absolutely no apologies also. Later, I tried to reach him by messaging a couple of times, and he deliberately omits all my messages.

Basic statistical and programming questions. Managable, can take time to think and ask for hint. It's fine as long as you can describe your thinking process. Overall quite a comfortable interview.