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Echo India Managed Services
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1-hour aptitude test, Duration - 1 hour, Topics - Arithmetic and reasoning
1-hour programming test to write programs
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posted on 16 Sep 2021
I appeared for an interview before Sep 2020.
Round duration - 70 Minutes
Round difficulty - Hard
Prateek is a kindergarten teacher with a mission to distribute candies to students based on their performance. Each student must get at least one candy, and if two s...
The task is to distribute candies to students based on their performance while minimizing the total candies distributed.
Create an array to store the minimum candies required for each student.
Iterate through the students' ratings array to determine the minimum candies needed based on the adjacent ratings.
Consider both left-to-right and right-to-left passes to ensure fair distribution.
Keep track of the total candies dist
You are given a sequence of numbers, ARR
. Your task is to return a sorted sequence of ARR
in non-descending order using the Merge Sort algorithm.
The Merge Sort...
Implement Merge Sort algorithm to sort a sequence of numbers in non-descending order.
Use Divide and Conquer approach to recursively divide the input array into two halves.
Merge the sorted halves to produce a completely sorted array.
Ensure the implementation handles the constraints specified in the problem statement.
Example: For input [3, 1, 4, 1, 5], the output should be [1, 1, 3, 4, 5].
Tip 1 : Practice Atleast 250 Questions
Tip 2 : Do atleast 2 projects
Tip 1 : Do not put false things on resume.
Tip 2 : Have some projects on resume.
posted on 15 Jul 2022
I applied via Referral and was interviewed before Jul 2021. There were 3 interview rounds.
If you are a fresher , then this is for you else almost no coding test for experienced candidates.
posted on 16 Mar 2023
I applied via Walk-in and was interviewed before Mar 2022. There were 3 interview rounds.
Java and python test was there
posted on 21 Dec 2024
I applied via Approached by Company and was interviewed before Dec 2023. There were 4 interview rounds.
2 sum program from Geeks for Geeks
Lazy loading delays loading of related data until it is specifically requested, while eager loading loads all related data upfront. N+1 problem occurs when lazy loading results in multiple additional queries being made.
Lazy loading is used to improve performance by only loading related data when needed
Eager loading loads all related data upfront to reduce the number of queries made
N+1 problem occurs in lazy loading whe...
posted on 10 Feb 2022
Nothing
posted on 18 Aug 2022
I applied via Campus Placement and was interviewed in Jul 2022. There were 3 interview rounds.
Questions based or percentage, profit loss, ratio
Stacks are a data structure that follows the Last In First Out (LIFO) principle.
Elements are added and removed from the top of the stack
Common operations include push (add element) and pop (remove element)
Stacks can be implemented using arrays or linked lists
Examples of stack usage include function call stack and undo/redo functionality in text editors
To find the middle number in a linked list.
Traverse the linked list using two pointers, one moving twice as fast as the other.
When the fast pointer reaches the end, the slow pointer will be at the middle node.
If the linked list has even number of nodes, there will be two middle nodes. Return either one.
I applied via Campus Placement and was interviewed before Mar 2023. There was 1 interview round.
2 medium hard level questions. We just have to code and explain it. Platform doesn't have compilers.
Reverse array of strings
Iterate through the array and swap elements from start to end
Use two pointers, one at the beginning and one at the end, and swap elements until they meet
Reverse a given string
Use built-in functions like reverse() or loop through the string in reverse order
Create a new string and append characters from the original string in reverse order
Convert the string to an array of characters, reverse the array, and then join it back into a string
Calculate sum of all elements in a given array of strings
Iterate through the array and convert each element to integer before adding to sum
Handle edge cases like empty array or non-numeric elements
Return the final sum after iterating through all elements
I appeared for an interview before Oct 2023.
Good Knowledge of DSA is required
based on 2 reviews
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