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Second Round: 1. Find all integers x, y (x >= 0, y >= 0) solutions of a diophantine equation of the form x ^ 2 - 4 * y ^ 2 = A 2. Write a function named first_non_repeating_letter that takes a string input, and returns the first character that is not repeated anywhere in the string. 3. Simple JOIN with COUNT Third Round 1. The interviewer gave a table with some sample data. The task was to give the best Data Structure solution in order to find a specific data efficiently.
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Data Engineer

Interviewed at Devoteam

3.8★
Jul 2, 2022

Second Round: 1. Find all integers x, y (x >= 0, y >= 0) solutions of a diophantine equation of the form x ^ 2 - 4 * y ^ 2 = A 2. Write a function named first_non_repeating_letter that takes a string input, and returns the first character that is not repeated anywhere in the string. 3. Simple JOIN with COUNT Third Round 1. The interviewer gave a table with some sample data. The task was to give the best Data Structure solution in order to find a specific data efficiently.

Calculate arbitrary things such as moving all the vowels in a string to the next vowel in the string, with the last one looping around to the first. Or returning a boolean based on whether or not a given word is a palindrome. You know, the sort of thing devs work on every day.
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Data Engineer

Interviewed at Capital One

4.6★
Aug 23, 2022

Calculate arbitrary things such as moving all the vowels in a string to the next vowel in the string, with the last one looping around to the first. Or returning a boolean based on whether or not a given word is a palindrome. You know, the sort of thing devs work on every day.

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