The interview process includes 2-3 rounds, with questions generally considered easy, especially from LeetCode. The first round will focus on Data Structures and Algorithms (DSA), so make sure to prepare well for that. The second round will assess your development skills. Overall, the interview is expected to be straightforward.
Interview questions [1]
Question 1
The Coin Change Problem is a classic dynamic programming problem where you are given an array of coins of different denominations and a total amount. The task is to find the minimum number of coins needed to make up the given amount. If it is impossible to make the amount with the given coins, return -1. The problem can be solved using a bottom-up approach by building a table that stores the minimum coins needed for each amount up to the target.
I applied online. I interviewed at Zoplar (Gurgaon, Haryana) in Sep 2023
Interview
The interview process at Zoplar includes two technical rounds, covering SQL, Google Sheets/Excel, Python, problem-solving, and critical thinking, followed by an HR interview focused on cultural fit and soft skills.
Interview questions [1]
Question 1
Table 1:
1
2
3
3
5
6
7
Table 2:
0
2
3
4
5
How would you use different types of joins (inner join, left join, right join, and full outer join) to combine these tables? Explain the results you would expect from each join type, highlighting which rows from Table 1 and Table 2 would appear in the output for each case. Additionally, discuss any scenarios where null values might be included and the reasons behind them
