Echidna Software Interview Questions and Answers

Technical mcq from basic of dsa

Question from DSA and time will given to solve it

Easy to medium level questions were asked

Questions were given asked to explain the concept

Q1. Basics of c++,java,oops
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DSA MCQ in online platform

Basic closings like lists/array/string

Online MCQs - 15 Questions (Aps, DSA, Output Prediction)

1 Question (with 3 Enhancement)

Q1. Delete Middle Element from a stack of Odd Length
Ans. 
Remove middle element from a stack with odd length
• Find the middle index of the stack by dividing the length by 2

• Remove the element at the middle index

• Adjust the stack by shifting elements if necessary
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Q2. Resume Based Questions
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Q1. Self Introduction but without the details in the resume
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Q2. Asked whether ok with the bond
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Data structure and aptitude

10 mins given for prepare for the problem and after completing the problem (program ) they asked to explain and asked to upgrade the program by reduce time complexity

Q1. Topic given and want to explain
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Q2. Reverse string without buildin funtion and for loop
Ans. 
Reverse a string without using built-in functions or for loops
• Use recursion to reverse the string

• Pass the substring excluding the first character to the recursive function

• Base case: return the character itself if the length of the string is 1

• Concatenate the last character of the string with the result of the recursive call
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Q1. Introduce your self
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java and Python programming languages

• Skilled in web development technologies like HTML, CSS, and JavaScript

• Worked on projects involving database management with SQL
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Q2. Are you ok with agreement
Ans. 
Yes, I am okay with agreement.
• I am comfortable with signing agreements related to software development projects.

• I understand the importance of agreements in protecting both parties involved in a project.

• I am willing to review and negotiate agreements to ensure they are fair and reasonable.
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There are Question based on data strcuture ,they cover all the topic in ds

In coding code they gave internet access to solve the problem after 30 they told us to make some changes in it and we should ready to explain the entire code