300+ Assistant System Engineer Interview Questions and Answers

The task is to identify constellations shaped like vowels within a matrix filled with characters {#, *, .}.

• Iterate through the matrix to find 3x3 constellations shaped like vowels.

• Check for vowels 'A', 'E', 'I', 'O', 'U' in the constellations.

• Print the vowels found in each test case.

Find minimum number of * or # to make a string valid with equal number of * and #.

• Count the number of * and # in the string.

• Find the absolute difference between the counts.

• Return the difference as the minimum number of characters to add.

• If the counts are already equal, return 0.

Calculate the maximum time Ninja can survive in a space survival game challenge.

• Create a function that takes initial health and armour as input for each test case

• Simulate Ninja's movement between planets and update health and armour accordingly

• Keep track of the maximum time Ninja can survive before health or armour reaches 0

Calculate total instances of equivalent prime groups in a day divided into equal parts.

• Divide the day into equal parts and check for prime groups at the same position in different parts.

• Each prime group consists of prime numbers occurring at the same position in different parts.

• Return the total number of equivalent prime groups found in the day.

Given two sorted arrays, find the path through common elements for maximum sum.

• Iterate through common elements in both arrays to find the path with maximum sum

• Switch between arrays at common elements to maximize the sum

• Keep track of the running sum as you traverse the arrays

• Return the maximum sum obtained

Determine the minimum possible value of the maximum number of balls in a bag after performing a given number of operations.

• Iterate through the bags and split them into two bags until the maximum number of operations is reached.

• Keep track of the maximum number of balls in a bag after each operation.

• Return the minimum possible value of the maximum number of balls in a bag.

The functions used in the code are calculateSum, displayResult, and validateInput.

• calculateSum - calculates the sum of two numbers

• displayResult - displays the result of the calculation

• validateInput - checks the validity of user input

Heap Sort is used to sort an array of integers in non-decreasing order by creating a max heap and repeatedly extracting the maximum element.

• Create a max heap from the input array.

• Swap the root (maximum element) with the last element and reduce the heap size.

• Heapify the root element to maintain the heap property.

• Repeat the above steps until the heap size is 1.

• The array will be sorted in non-decreasing order.

Determine the maximum amount of money a thief can steal from houses without looting two consecutive houses.

• Create an array 'dp' to store the maximum money that can be stolen up to the i-th house.

• Iterate through the houses and update 'dp' based on whether the current house is looted or not.

• Return the maximum value in 'dp' as the answer.

Given an array and a target sum, find pairs of elements that add up to the target sum.

• Iterate through the array and for each element, check if the complement (target sum - current element) exists in a hash set.

• If the complement exists, add the pair to the result list.

• Sort the result list based on the first element of each pair, then the second element if the first elements are equal.

The task is to determine the maximum possible number of unique vehicle registrations given the number of districts, the range of series letters, and the range of digits.

• Parse the input for each test case: number of districts, letter ranges, and digit ranges.

• Calculate the total number of unique registrations based on the given constraints.

• Output the maximum number of unique vehicle registrations for each test case.

• Ensure to handle the constraints specified in the problem state...read more

Check if the binary representation of a given integer is a palindrome.

• Convert the integer to binary representation.

• Check if the binary representation is a palindrome by comparing it with its reverse.

• Return true if it is a palindrome, false otherwise.

Find the maximum area of a triangle formed by 3 points in a 2D coordinate system.

• Iterate through all possible combinations of 3 points to calculate the area of the triangle using the formula for area of a triangle given 3 points.

• Keep track of the maximum area found so far and return it as the result.

• Ensure to handle edge cases like collinear points or points with the same coordinates.

Identify duplicate elements in an array of integers within a given range.

• Iterate through the array and keep track of the frequency of each element using a hashmap.

• Return elements with frequency greater than 1 as duplicates.

• Handle edge cases like empty array or no duplicates found.

• Example: For input [0, 3, 1, 2, 3], output should be [3].

Yogesh needs to find the minimum possible P such that there are at least K prime numbers in the range [A, P].

• Iterate from A to B and check if each number is prime

• Keep track of the count of prime numbers found in the range [A, P]

• Return the minimum P that satisfies the condition or -1 if no such P exists

SOAP is a protocol while REST is an architectural style. SOAP uses XML while REST uses JSON or XML.

• SOAP is a protocol while REST is an architectural style

• SOAP uses XML while REST uses JSON or XML

• SOAP requires WSDL while REST does not

• SOAP supports only POST method while REST supports GET, POST, PUT, DELETE, etc.

• SOAP has built-in error handling while REST relies on HTTP error codes

• In SOAP, errors are handled using Fault element while in REST, errors are handled using HTTP statu...read more

A linked list is a data structure that consists of a sequence of nodes, where each node contains a reference to the next node.

• A linked list is a dynamic data structure that can grow or shrink as needed.

• Each node in a linked list contains two parts: data and a reference to the next node.

• To insert a node at the beginning of a linked list, we create a new node, set its data, and update the reference of the new node to point to the current head of the list.

C++ is an extension of C with object-oriented programming features.

• C++ supports classes and objects while C does not.

• C++ has better support for polymorphism and inheritance.

• C++ has a standard template library (STL) while C does not.

• C++ is more complex and has more features than C.

• C++ is often used for developing large-scale software projects.

• C is often used for system programming and embedded systems.

Local variables are declared within a specific function or block, while global variables are declared outside of any function or block.

• Local variables have a limited scope and are only accessible within the function or block where they are declared.

• Global variables can be accessed from anywhere in the program.

• Local variables are created when a function is called and destroyed when the function ends.

• Global variables are created when the program starts and exist until the progr...read more

ArrayList is a dynamic array that can grow or shrink in size. It provides advantages like dynamic resizing and built-in methods.

• ArrayList is a resizable array implementation of the List interface in Java.

• It can store elements of any type, including objects and primitives.

• Advantages over generic arrays include dynamic resizing, automatic memory management, and built-in methods like add(), remove(), etc.

• Example: ArrayList<String> names = new ArrayList<String>();

• names.add("John"...read more

Yes, I have participated in TCS CodeVita.

• I participated in TCS CodeVita in 2020 and 2021.

• I was able to solve several coding problems during the competition.

• Participating in CodeVita helped me improve my coding skills and problem-solving abilities.

My handwriting is bad due to lack of practice and poor motor skills. I am taking steps to improve it.

• I have started practicing writing regularly to improve my motor skills.

• I am using handwriting improvement books and online resources to learn proper techniques.

• I am also seeking feedback from others to identify areas of improvement.

• I am using tools like grip aids and ergonomic pens to make writing more comfortable.

• I am committed to improving my handwriting and am open to any s...read more

Yes, I am willing to sign the service bonds.

• I understand the importance of service bonds in ensuring job security and commitment to the company.

• I am willing to commit to the terms and conditions of the bond.

• I believe in the company's vision and goals and am excited to contribute to its growth.

• I have signed service bonds in the past and have fulfilled my obligations.

• I am open to discussing the terms of the bond before signing.

Asymptotic notation is a way to describe the performance of an algorithm by analyzing its behavior as the input size approaches infinity.

• Asymptotic notation is used to analyze the efficiency and scalability of algorithms.

• It provides a way to compare algorithms based on their growth rates.

• Commonly used asymptotic notations include Big O, Big Omega, and Big Theta.

• Big O notation represents the upper bound or worst-case scenario of an algorithm's time complexity.

• For example, an a...read more

Unions and joins are used to combine data from multiple tables. Primary keys are unique identifiers for a table, while unique keys ensure uniqueness of a column.

• Unions combine data from two or more tables into a single result set, while joins combine data from two or more tables based on a common column.

• Primary keys are used to uniquely identify each row in a table and cannot contain null values. Unique keys ensure that a column has unique values, but can contain null values....read more

Arrays offer constant time access and efficient memory usage, but have fixed size. Linked lists have dynamic size but slower access.

• Arrays provide constant time access to elements using index

• Arrays have efficient memory usage as they store elements in contiguous memory locations

• Arrays have a fixed size and cannot be easily resized

• Linked lists have dynamic size and can grow or shrink as needed

• Linked lists allow efficient insertion and deletion of elements

• Linked lists require e...read more

Join is a database operation that combines rows from two or more tables based on a related column between them.

• Inner join returns only the matching rows from both tables.

• Outer join returns all the rows from one table and the matching rows from the other table.

• There are different types of outer joins: left outer join, right outer join, and full outer join.

• Joining tables can be done using the JOIN keyword in SQL.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column =...read more

Find the difference between the sum of odd and even position digits in a maximum of 100 digit number.

• Iterate through the digits of the number and add the digits at odd positions to a variable for odd position digits and even positions to a variable for even position digits.

• Calculate the difference between the two variables.

• Return the difference.

• Example: For the number 123456, the sum of digits at odd positions is 1+3+5=9 and the sum of digits at even positions is 2+4+6=12. Th...read more