Senior Backend Developer Interview Questions

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Coding problem to calculate the stock per day after there are 3 ArrayList which contains information about the companies, how much stock they have, and another array about the transaction, how much they sell, how much money they earn from selling, and how much got deducted when they buy new stock
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Sr Backend Software Engineer

Interviewed at Addepar

3.9
Jul 21, 2025

Coding problem to calculate the stock per day after there are 3 ArrayList which contains information about the companies, how much stock they have, and another array about the transaction, how much they sell, how much money they earn from selling, and how much got deducted when they buy new stock

1. Given an input String with [] and prefixed with a number, repeat the string with [] that many number of times and give the output. For eg. input : a2[bc]d4[e] output: abcbcdeeee input : p2[q3r3[st]u] output: pq3rstststuq3rstststu
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Senior Backend Developer

Interviewed at Hike

3.7
Nov 4, 2022

1. Given an input String with [] and prefixed with a number, repeat the string with [] that many number of times and give the output. For eg. input : a2[bc]d4[e] output: abcbcdeeee input : p2[q3r3[st]u] output: pq3rstststuq3rstststu

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