Techolution Senior Full Stack Developer Interview Questions and Answers

Q1. How make a queue using a stack
Ans. 
To implement a queue using a stack, use two stacks and simulate the queue operations.
• Use two stacks, one for enqueue operation and one for dequeue operation.

• For enqueue operation, simply push elements onto the stack used for enqueueing.

• For dequeue operation, if the dequeue stack is empty, pop all elements from enqueue stack and push onto dequeue stack.

• Then pop from the dequeue stack to simulate dequeue operation.
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Q2. Create a linked list
Ans. 
A linked list is a data structure consisting of nodes where each node points to the next node in the sequence.
• Create a Node class with data and next pointer

• Initialize a head pointer to null

• Add nodes by updating next pointers

• Traverse the list by following next pointers
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It was ok. I was not able to solve all the questions.

Q1. Remove the last element from a linkedlist
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Q2. Some basic questions on oops dbms and os
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Q1. I don't know why they rejected me
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Q2. What ever they asked me for coding part the output is correct and logic is also correct
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It was a test that had like basic c questions that one needs to practice, basic logical reasoning and Mathematics, a couple of English grammar questions

There is a coding round with 4 questions 3 coding questions and one find the output of the c program question, one easy question, 2 medium questions one medium to hard level.Two linear data structure questions one array one linked list and one tree question.

Another coding test with 3 questions medium to hard level questions from trees and linked lists, with optimisation required

Q1. Tell me about
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Q2. Your self they are asking
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Q3. What is your weakness
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Q4. Any questions ask for me
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Q5. All the best future
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Coding for international

Quantitative arithmetic,verbal reasoning,non-verbal reasoning,etc

Aptitude test was easy but difficult

Q1. Technical questions linked list
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Q2. Array binary search Dp
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