Perennial Systems Associate Software Developer Interview Questions and Answers

Q1. How to rotate a matrix?
Ans. 
To rotate a matrix, transpose it and then reverse each row or column depending on the direction of rotation.
• Transpose the matrix by swapping elements across the diagonal

• For clockwise rotation, reverse each row of the transposed matrix

• For anti-clockwise rotation, reverse each column of the transposed matrix
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Q2. How to find a particular element in a sorted array?
Ans. 
Use binary search to efficiently find a particular element in a sorted array.
• Start by comparing the target element with the middle element of the array.

• If the target element is less than the middle element, search the left half of the array.

• If the target element is greater than the middle element, search the right half of the array.

• Repeat the process until the target element is found or the search space is empty.
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Full c concept MCQ with IQ and Computaional Thinking

Q1. Number system convertion in c
Ans. 
Number system conversion in C involves converting numbers between different bases, such as decimal to binary or hexadecimal.
• Use functions like itoa() to convert integers to strings in different bases

• Use strtol() to convert strings to integers in different bases

• Remember to specify the base when converting numbers
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Q2. Pointers, struct, Data Structure
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Q1. Decimal to Binary Convertion
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Q2. Hexa Decimal to Binary convertion
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Q1. Linked list question to detect cycle
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Q2. Basic questions from JS
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Q1. Some questions related to my projects
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Q2. Some Questions related to my past experience
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3 coding questions and some McQ questions

Q1. Asked DSa question of TWO sum
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Q2. Dsa question of three sum
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Q1. Dsa question of merge sort
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Q2. DBMS interview questions
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Q3. Operating system questions
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Q1. What is jdk, string related questions, basic java oops questions?
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Q1. OOP questions SQL Questions Programming structure
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Q1. SQL questions MVC and C# related questions
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1 hr test on HackerEarth platform, DSA questions

Q1. Experience in domains
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Q2. Previous companies
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Q1. SQL basic questions
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Q2. .net and OOP basics
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