Altair Engineering Senior Software Engineer Interview Questions and Answers for Freshers

Q1. Memory management cpp
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Q2. Solid principles
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Q1. String coding question
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Q2. File operations
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4 question asked medium and hard

1 question asked and oops concept

Q1. Normal question
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Q1. C++ oops core, copy constructor, run time polymorphism, ipc mechanisms, dsa coding
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Q1. About my day to day work routine, what will you do if you have approach/design conflict with team architect, collaboration with team members, software development cycle in my company.
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Q1. Add two linked list
Ans. 
To add two linked lists, iterate through both lists simultaneously and add corresponding nodes, considering carry from previous addition.
• Create a dummy node to hold the result.

• Initialize current node to dummy node.

• Iterate through both lists, adding values and carry from previous addition.

• Move to next nodes in both lists.

• Handle cases where one list is longer than the other.

• Handle final carry if present.
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Q2. Find shortest path in graph
Ans. 
Use Dijkstra's algorithm to find the shortest path in a graph
• Implement Dijkstra's algorithm to find the shortest path between two nodes in a graph

• Maintain a priority queue to keep track of the shortest distance to each node

• Update the shortest distance to each node as you traverse the graph

• Track the path by storing the previous node for each node visited
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Q1. Check tree is BST
Ans. 
Check if a binary tree is a Binary Search Tree (BST)
• Perform an in-order traversal of the tree and check if the resulting array is sorted

• Keep track of the previous node value during traversal to compare with the current node value

• Ensure that each node's value is greater than the previous node's value in the in-order traversal
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Q2. Check substring palindrome or not
Ans. 
Check if a substring in an array of strings is a palindrome or not.
• Iterate through each string in the array

• For each string, check if any of its substrings are palindromes

• Return true if a palindrome substring is found, false otherwise
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Q1. Reverse linked list recursively
Ans. 
Reverse a linked list recursively
• Create a recursive function to reverse the linked list

• Pass the current node and its next node as parameters

• Update the next pointer of the current node to point to the previous node
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Q2. Check if two stacks are equal
Ans. 
Check if two stacks are equal by comparing each element in the stacks
• Pop elements from both stacks and compare them one by one

• If the sizes of the stacks are different, they are not equal

• If any element in the stacks is different, they are not equal
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OOPS Principle.
SQL
Java Coding Round - with easy level of questions

Aptitude test was provided for 45 mins

Q1. OOPS, virtual, inheritance
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