Internship Interview Questions

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You have 100 white balls and your opponent has 100 black balls. You each can put as many balls as you want into a common pot. A third party randomly draws from the common pot, and who ever’s ball was drawn wins the amount of money equal to the number of balls they have left over. Assuming you know your opponent will put in 99 balls, how many should you put in?
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Internship

Interviewed at Jane Street

4.4
Feb 2, 2020

You have 100 white balls and your opponent has 100 black balls. You each can put as many balls as you want into a common pot. A third party randomly draws from the common pot, and who ever’s ball was drawn wins the amount of money equal to the number of balls they have left over. Assuming you know your opponent will put in 99 balls, how many should you put in?

Given a list of words, group the words that contain the same letters (like dog and god and NOT good). How wold you serialize a general binary tree of characters into a string? Write the serializing side the take in the root node of a general tree. Write the deserializing side to take in a string return a root node of the general tree.
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Software Engineer(Internship)

Interviewed at Uber

3.7
Oct 6, 2017

Given a list of words, group the words that contain the same letters (like dog and god and NOT good). How wold you serialize a general binary tree of characters into a string? Write the serializing side the take in the root node of a general tree. Write the deserializing side to take in a string return a root node of the general tree.

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