Corecard Software Senior Software Developer Interview Questions and Answers

Topics:-
Duration-1.5 hours
Kadane's Algorithm, Even Numbers at even index & odd at odd index, print out the second highest node of the tree

Q1. DSA ZigZag tree traversal OS Architecture of RAM Types of RAM Difference between compiler and interpreter What is a scheduler What is multithreading Disadvantages of FCFS and how can we use RoundRobin to ...read more
Ans. 
ZigZag tree traversal is a method to traverse a binary tree in a zigzag pattern.
• In ZigZag tree traversal, we visit the nodes of a binary tree in a zigzag pattern, moving from left to right and then right to left.

• We can use a stack or a queue to implement ZigZag tree traversal.

• The algorithm involves maintaining two stacks or two queues to keep track of the nodes at each level.

• We start with the root node and alternate be...read more
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JavaScript questions

Arrays, LinkedList basic dsa questions

Q1. Binary Tree 2nd largest node
Ans. 
To find the 2nd largest node in a binary tree, we can perform an in-order traversal and keep track of the two largest nodes.
• Perform an in-order traversal of the binary tree

• Keep track of the two largest nodes encountered

• Return the second largest node when traversal is complete
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Q2. Basic web questions
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Easy coding question generally A, B level question of codeforces

Q1. OOPs, DBMS , Computer network and some basics over java
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Q1. Basic of spring boot, Database, annotations, core Java, and some basic DSA problems
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Q2. Study basics of spring boot, spring hibernate, database - relational and others. And problems basic string and array questions
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Q1. Description about yourself
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Q2. Told about my self and some technical questions
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Q1. 1 - Easy Medium Question. Discuss the approach with interviewer and then implement it. The code should work, thats important.
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Q1. LLD round to design Chess.
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Q1. Hiring manager round. Grilling on resume and past experience questions
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Round duration - 90 minutes
Round difficulty - Medium

Timing was 9 PM. Platform was not good. Platform was very lagging so overall it was bad experience.

Q1. 
Find the Third Greatest Element
Given an array 'ARR' of 'N' distinct integers, determine the third largest element in the array.
Input:
The first line contains a single integer 'T' representing the numb...read more
Ans. 
Find the third largest element in an array of distinct integers.
• Sort the array in descending order and return the element at index 2.

• Handle cases where the array has less than 3 elements separately.

• Use a set to store distinct elements for efficient processing.
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Q2. 
Longest Palindromic Substring Problem Statement
You are provided with a string STR of length N. The task is to find the longest palindromic substring within STR. If there are several palindromic substring...read more
Ans. 
Find the longest palindromic substring in a given string.
• Iterate through the string and expand around each character to find palindromes

• Keep track of the longest palindrome found so far

• Return the longest palindromic substring
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Q3. 
Ninja and Geometry Problem Statement
In this problem, Ninja is provided with two lines on a 2D plane. The first line 'AB' is determined by two points A and B. The second line 'PQ' is determined by two poi...read more
Ans. 
Calculate the intersection point of two lines on a 2D plane with precision up to six decimal places.
• Implement a function to calculate the intersection point of two lines on a 2D plane

• Handle precision up to six decimal places in the output

• Return -1.000000 -1.000000 if the lines do not intersect

• Ensure the lines 'AB' and 'PQ' are distinct
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Round duration - 90 minutes
Round difficulty - Medium

Timing was 9 PM. Platform was not good. Platform was very lagging so overall it was bad experience.

Q1. 
Find the Third Greatest Element
Given an array 'ARR' of 'N' distinct integers, determine the third largest element in the array.
Input:
The first line contains a single integer 'T' representing the numb...read more
Ans. 
Find the third largest element in an array of distinct integers.
• Sort the array in descending order and return the element at index 2.

• Handle cases where there are less than 3 elements in the array.

• Consider edge cases like negative integers and duplicates.
Answered by AI
Add your answer
Q2. 
Longest Palindromic Substring Problem Statement
You are provided with a string STR of length N. The goal is to identify the longest palindromic substring within this string. In cases where multiple palind...read more
Ans. 
Identify the longest palindromic substring in a given string.
• Iterate through each character in the string and expand around it to find palindromes

• Keep track of the longest palindrome found so far

• Return the longest palindromic substring with the smallest start index
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Q3. 
Ninja and Geometry Problem Statement
In this problem, Ninja is provided with two lines on a 2D plane. The first line 'AB' is determined by two points A and B. The second line 'PQ' is determined by two poi...read more
Ans. 
Calculate the intersection point of two lines on a 2D plane with precision up to six decimal places.
• Implement a function to calculate the intersection point of two lines on a 2D plane

• Handle precision up to six decimal places in the output

• Return -1.000000 -1.000000 if the lines do not intersect

• Ensure the lines 'AB' and 'PQ' are distinct
Answered by AI
Add your answer