4 balls in a bag: 2 reds, 2 blacks. Randomly pick 2 balls, paint the second ball to color of the first ball. Find the expected number of times until all the balls have the same color.
Algorithmic Trader Interview Questions
54 algorithmic trader interview questions shared by candidates
a^2+b^2 = c^2, a+b+c = 40, and a,b,c are positive integers. What are a,b,and c?
X,Y ~ Phi(0,1) (normal distribution). What is the probability that X > 5*Y
It's three o'clock now. How long will it take for the minute hand and the hour hand to meet for the first time?
Reverse a link list without using loops?
We take turn flipping a coin, the first one that get a tail win the game. Is it an even game ? if not what is the probability of the first player winning.
They asked me to discuss about my PhD studies and results. They were interested into the subject of my thesis.
design a stack, which can return the minimum value, from leetcode
How I deploy my systematic strategies.
Write a code to compress a trie?
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