Angel One Intern Interview Questions and Answers

2 codes were asked.
One was related to fibonacci series
Second was related to linked list

Maths, reasoning and english

MCQ+2 Coding questions

Q1. LCA in binary tree
Ans. 
LCA in binary tree refers to finding the lowest common ancestor of two nodes in a binary tree.
• Start from the root and traverse down the tree to find the paths to the two nodes

• Compare the paths to find the last common node between them, which is the LCA

• If one of the nodes is the ancestor of the other, return that node as the LCA
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Q1. Tell me about yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Graduated with a degree in Computer Science

• Passionate about coding and problem-solving

• Completed internships at tech companies

• Participated in coding competitions
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Two Coding questions were asked -
1- Graph Connectivity with threshold
2-Find length of longest subsequence of one string which is substring of another string

Q1. N-Queens, Snake and Ladder Problem, Second Most repeated word in a sequence
Ans. 
These are three different programming problems that require different approaches to solve.
• N-Queens: placing N queens on an NxN chessboard so that no two queens threaten each other

• Snake and Ladder Problem: finding the minimum number of dice rolls to reach the end of a board with snakes and ladders

• Second Most Repeated Word in a Sequence: finding the second most frequently occurring word in a given sequence of words
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Q2. Replace every element with the greatest element on the right side
Ans. 
Replace each element with the greatest element on its right side in the array
• Loop through the array from right to left

• Keep track of the maximum element seen so far

• Replace the current element with the maximum element seen so far

• Return the modified array
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Q3. Special Keyboard DP Problem
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2 hours HackerEarth coding round

Q1. Some medium level of question
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HackerEarth test medium level question

Quant, English and Computer Fundamentals

Coding with different coding languages you can choose your own language and solve the problem.

1 Hour of aptitude test companied by 1 hour of coding test 2 questions

Q1. The interview started with stack, queue and linked list questions and its applications.
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You get some projects to do after every session

Q1. Questions relating to all the projects that you have done
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