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Given unlimited space, build a data-structer that can do: 1. insert any kind of data such as number/charachter 2. remember the order of insertion 3. at any given time, you can get a call that contain a rang to be deleted from the current data you have saved do far(e.g. 100-200) try to accomplish this faster than O(N)
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Backend Engineer

Interviewed at JFrog

4.3★
Aug 13, 2019

Given unlimited space, build a data-structer that can do: 1. insert any kind of data such as number/charachter 2. remember the order of insertion 3. at any given time, you can get a call that contain a rang to be deleted from the current data you have saved do far(e.g. 100-200) try to accomplish this faster than O(N)

There were two coding questions and I was given a blank paper. Q1: find digit sum of all the questions till n. eg if n = 12, res = 51 (1+2+...+9 + (1+0) + (1+1) + (1+2)) Q1 was easy and I was able to code it. Q2 was tough here is the question http://stackoverflow.com/questions/11253027/algorithm-to-find-the-total-number-of-connected-sets-in-a-matrix I solved the problem, but was not able to code it properly as it was a long program and I had only paper. I thought i will explain the code later to the interviewer. I got rejected came back and coded both questions at home with same logic. Still dont know why I got rejected.
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Backend Developer

Interviewed at OYO

3.4★
Aug 27, 2016

There were two coding questions and I was given a blank paper. Q1: find digit sum of all the questions till n. eg if n = 12, res = 51 (1+2+...+9 + (1+0) + (1+1) + (1+2)) Q1 was easy and I was able to code it. Q2 was tough here is the question http://stackoverflow.com/questions/11253027/algorithm-to-find-the-total-number-of-connected-sets-in-a-matrix I solved the problem, but was not able to code it properly as it was a long program and I had only paper. I thought i will explain the code later to the interviewer. I got rejected came back and coded both questions at home with same logic. Still dont know why I got rejected.

The interview was all about implementing a Snake Game (LeetCode question 353), give or take, Food location randomness will be talked about in the ending part of the interview. 1) Write (and talk about) a technical design of the game, the data, members, overall functionality. 2) Implement the code over IDE (screen share, not using the internet or AI tools). Food location is a STUB. 3) Draw a design of the food location randomness. Architecture interview: 1) Tell us about a project you implemented in details, prefer something complex that you know all the details about (deep dive). 2) Design in high level (no code) a db like a Redis Cluster, in memory, with persistence, high response time, fault tolerance, etc..
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Senior Backend Engineer

Interviewed at Silverfort

4.4★
Feb 1, 2024

The interview was all about implementing a Snake Game (LeetCode question 353), give or take, Food location randomness will be talked about in the ending part of the interview. 1) Write (and talk about) a technical design of the game, the data, members, overall functionality. 2) Implement the code over IDE (screen share, not using the internet or AI tools). Food location is a STUB. 3) Draw a design of the food location randomness. Architecture interview: 1) Tell us about a project you implemented in details, prefer something complex that you know all the details about (deep dive). 2) Design in high level (no code) a db like a Redis Cluster, in memory, with persistence, high response time, fault tolerance, etc..

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