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Create an in memory store for recently played songs that can accommodate N songs per user, with a fixed initial capacity. This store must have the capability to store a list of song-user pairs, with each song linked to a user. it should also be able to fetch recently played songs based on the user and eliminate the least recently played songs when the store becomes full.
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Software Development Engineer In Test (SDET)

Interviewed at TestVagrant

4.5★
May 10, 2024

Create an in memory store for recently played songs that can accommodate N songs per user, with a fixed initial capacity. This store must have the capability to store a list of song-user pairs, with each song linked to a user. it should also be able to fetch recently played songs based on the user and eliminate the least recently played songs when the store becomes full.

Questions included: array where indexes correspond to the tree node number of a parent node, and values correspond to current tree node number., root having number -1 Write code to recreate a tree (binary tree, bnon-BST). Another question was: given an array of numbers including negative, print the highest sum of the continuous sequence you can find. Another one: difference between hashtable and hashmap, etc. Detailed performance test questions: load, stress, etc tests. Given than these definitions differ from company to company (I attest, as my parent heads performance engineering in large US defense company and this was discussed over and over)...why write down and question every detail from you response and pick on coefficients such as 1.5 versus 2, etc: this is quite nonsensical.
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Software Development Engineer In Test

Interviewed at Amazon

3.5★
Oct 6, 2013

Questions included: array where indexes correspond to the tree node number of a parent node, and values correspond to current tree node number., root having number -1 Write code to recreate a tree (binary tree, bnon-BST). Another question was: given an array of numbers including negative, print the highest sum of the continuous sequence you can find. Another one: difference between hashtable and hashmap, etc. Detailed performance test questions: load, stress, etc tests. Given than these definitions differ from company to company (I attest, as my parent heads performance engineering in large US defense company and this was discussed over and over)...why write down and question every detail from you response and pick on coefficients such as 1.5 versus 2, etc: this is quite nonsensical.

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