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Dream11 Software Engineer Interview Questions and Answers
Dream11 Software Engineer Interview Experiences
1 interview found
Anonymous
(2 Questions)
- Q1. Search in 2d matrix
- Ans.
Search for a target value in a 2D matrix efficiently.
Use binary search on rows to find the potential row where the target value may exist.
Then use binary search on that row to find the target value.
- Q2. Find quadraplets that sum to target
- Ans.
Find quadraplets in an array that sum up to a target value.
Use a nested loop to iterate through all possible combinations of quadraplets.
Keep track of the sum of each quadraplet and compare it to the target value.
Return the quadraplets that match the target sum.
Skills evaluated in this interview
Interview questions from similar companies
Interview Questionnaire
2 Questions
- Q1. Find the type of data structure based on the operation performed. Given the order of insertion and deletion. Find whether this operation corresponds to stack/queue /priority queue
- Ans.
Identify data structure based on insertion and deletion order
If insertion and deletion follow LIFO order, it is a stack
If insertion follows FIFO order and deletion follows LIFO order, it is a queue
If insertion and deletion follow priority order, it is a priority queue
- Q2. Find maximum element in an array in less dhan O(N)
- Ans.
Find maximum element in an array in less than O(N)
Use divide and conquer approach
Compare maximum of left and right subarrays
Recursively find maximum element
Interview Preparation Tips
Skills evaluated in this interview
I applied via Approached by Company and was interviewed in Feb 2022. There were 2 interview rounds.
(1 Question)
- Q1. Basic questions of related role.
(1 Question)
- Q1. Deeper technology-related questions and simple coding
Interview Preparation Tips
They took 2 rounds within 2 weeks, all goes well. after that HR confirms that you cleared the round and someone will call you for a final discussion. Post that they never reply. and when you call back to HR every time he says "I will check and let you know" but never ever did it for months.
Don't waste our time if you are not serious about hiring.
I applied via Approached by Company and was interviewed before Jul 2021. There were 2 interview rounds.
They given 2 program to to 1-2 hour
(1 Question)
- Q1. Ask basic programming questions
Interview Preparation Tips
I applied via Approached by Company and was interviewed before May 2023. There were 2 interview rounds.
(1 Question)
- Q1. Coding question leetcode medium
(2 Questions)
- Q1. Coding question
- Q2. Leetcode medium
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed before Oct 2022. There were 3 interview rounds.
(2 Questions)
- Q1. Coding questions was leecode replace 3 concurrent character in string until there is none
- Q2. You can google the answer
(2 Questions)
- Q1. Here also leetcode easy
- Q2. Easily solvable
Interview Preparation Tips
Selected
I was interviewed before May 2022.
Basic on PHP and Javascript should be clear
Laravel framework based questions
Algo, basic Javascript
(1 Question)
- Q1. Technical and Fitment round
Selected
I applied via Campus Placement and was interviewed in Aug 2022. There were 3 interview rounds.
Questions from trees and linkedin
(2 Questions)
- Q1. Question on dsa and on oops
- Q2. Reverse linked list with multiple approach
- Ans.
Reverse a linked list using multiple approaches.
Iterative approach: Use three pointers to reverse the links between nodes.
Recursive approach: Recursively reverse the rest of the list and adjust the links.
Stack approach: Push all the nodes onto a stack and then pop them to create the reversed list.
Interview Preparation Tips
Skills evaluated in this interview
Interview Questionnaire
2 Questions
- Q1. Implement LRU Cache
- Ans.
LRU Cache is a data structure that stores the most recently used items and discards the least recently used items.
Use a hash table to store key-value pairs
Use a doubly linked list to keep track of the order of items
When an item is accessed, move it to the front of the list
When the cache is full, remove the least recently used item from the back of the list
Lookup and insertion should be O(1) time complexity
- Q2. Implement 2 stacks in an array
- Ans.
Implement 2 stacks in an array
Divide the array into two halves
Use top1 and top2 to keep track of top elements of stacks
Push and pop elements from respective halves
Check for overflow and underflow conditions
Skills evaluated in this interview
25 basic aptitude asked from train,time and work
2 coding questions which was basic and medium questions
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Dream11 Software Engineer Interview Process
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