Bluekaktus interview experience Real time questions & tips from candidates to crack your interview
Associate Software Developer
Bluekaktus
1 rounds | 1 Coding
problems
Selected Interview preparation journey
Journey
It was an on-campus interview. It was a single-round interview. I was asked a straightforward DSA question, which is a very famous problem, i.e., the Trapping Rain Water problem. Since I was familiar with the problem, I quickly explained my approach and then wrote down the code. The interviewer then asked about the space and time complexity, which I explained. He was satisfied with my approach. Hence, I was selected.
Application story
It was an on-campus interview. It was a single-round interview. I was asked a straightforward DSA question, which is a very famous problem, i.e., the Trapping Rain Water problem.
Why selected/rejected for the role?
As I was aware of the problems that were asked, I quickly explained my approach to them and then wrote down the code. The interviewer then asked about the space and time complexity, which I explained. He was satisfied with my approach, and hence, I was selected.
Preparation
Duration: 6 months
Topics: Data Structures, Algorithms, OOPS, Problem Solving, DBMS
Tip 1: Don’t panic.
Tip 2: Listen to the question carefully.
Tip 3: If you have any doubts about the question, ask the interviewer.
Application process
Where: Campus
Eligibility: 7 CGPA (Salary: 9 LPA)
Tip 1: Write only the truth on your resume.
Tip 2: Go through your resume once before the interview.
Interview rounds
01
Round
Easy
Video Call
Duration30 minutes
Interview date14 Jan 2022
Coding problem1
1. Trapping Rain Water
Moderate
15m average time
80% success
0/80
Asked in companies
You have been given a long type array/list 'arr’ of size 'n’.
It represents an elevation map wherein 'arr[i]’ denotes the elevation of the 'ith' bar.
Print the total amount of rainwater that can be trapped in these elevations.
Note :
The width of each bar is the same and is equal to 1.
Example:
Input: ‘n’ = 6, ‘arr’ = [3, 0, 0, 2, 0, 4].
Output: 10
Explanation: Refer to the image for better comprehension:
Note :
You don't need to print anything. It has already been taken care of. Just implement the given function.
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
What is recursion?
Choose another skill to practice
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