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Raja Software Labs Interview Questions and Answers
40 Interview questions
Sort an array of 0s and 1s with low complexity.
Use two pointers, one at the beginning and one at the end of the array.
Swap 0s from the beginning with 1s from the end until the pointers meet.
Time complexity: O(n), space complexity: O(1).
Find minimum angle between hour and minute hand.
Calculate the angle made by hour hand with 12 o'clock position and minute hand with 12 o'clock position.
Calculate the difference between the two angles.
If the difference is greater than 180 degrees, subtract it from 360 degrees to get the minimum angle.
A prime number is a number greater than 1 that is divisible only by 1 and itself.
Start with a loop to iterate through numbers
Check if each number is divisible by any number from 2 to its square root
If not divisible, add it to the list of prime numbers
Find the longest substring that is a palindrome in a given string.
Use dynamic programming to solve the problem efficiently.
Create a 2D boolean array to store the results of subproblems.
Check for palindromes of length 1 and 2 separately.
For substrings of length greater than 2, check if the first and last characters are the same and the substring between them is also a palindrome.
Update the result if a longer palind...
Find the first non-repeating character in a string.
Create a hash table to store character frequency
Iterate through the string and update the hash table
Iterate through the string again and return the first character with frequency 1
Printing all the subsequences in an array with a given sum.
Use recursion to generate all possible subsequences.
Check if the sum of each subsequence is equal to the given sum.
Print the subsequences that satisfy the condition.
Time complexity: O(2^n).
Sort an array of 0s and 1s in one loop using two pointers.
Use two pointers, one starting from the beginning and the other from the end.
Swap the values at the pointers if the value at the beginning pointer is greater than the value at the end pointer.
Continue until the pointers meet in the middle.
Time complexity is O(n).
The angle between hour and minute hand of a clock at a given time.
Calculate the angle made by the hour hand with 12 o'clock
Calculate the angle made by the minute hand with 12 o'clock
Find the difference between the two angles
If the difference is greater than 180 degrees, subtract it from 360 degrees
The result is the angle between the hour and minute hand
The task is to print a string without any repeating characters.
Iterate through the string and keep track of the characters seen so far.
If a character is already seen, skip it.
Otherwise, add it to the output string.
Return the output string.
The question is about finding the occurrence of characters in a string.
Iterate through the string and count the occurrence of each character.
Use a hash table to store the count of each character.
Consider the case sensitivity of the characters.
Handle special characters and spaces as required.
Raja Software Labs Interview Experiences
43 interviews found
Anonymous
Code Snept question with 3-4 Reasoning question. Google form
Pen paper coding round. String , Array . Linkedlist , graph, questions
(3 Questions)
- Q1. Maximum Spaning
- Q2. Nearest Prime number
- Ans.
To find the nearest prime number, iterate from the given number in both directions until a prime number is found.
Start iterating from the given number in both directions to find the nearest prime number.
Check if a number is prime by dividing it by all numbers less than its square root.
Keep track of the closest prime number found during the iteration.
- Q3. Second Maximum Number in Array
- Ans.
Find the second maximum number in an array of strings.
Convert the array of strings to an array of integers.
Sort the array in descending order.
Return the second element in the sorted array.
(4 Questions)
- Q1. Project Question
- Q2. Robot question of DSA
- Q3. Stock Buy and sell - VI . Leetcode Hard
- Ans.
Maximize profit by buying and selling stocks with at most k transactions.
Use dynamic programming to track profits for each transaction.
Maintain an array to store maximum profit for each day.
Example: For prices [3,2,6,5,0,3] and k=2, max profit is 7.
Consider edge cases like k=0 or prices being empty.
- Q4. Leetcode Medium
Skills evaluated in this interview
I applied via Recruitment Consulltant and was interviewed in Oct 2024. There were 2 interview rounds.
Programming questions on string, array, numbers.
Difficultity level was simple.
5 questions were asked out of which 2 of them were easy and rest of them were hard.
Easy :- sorting, numbers
Hard :- bitwise, mathematical equation question.
Amey Uplenchwar
I applied via Campus Placement
Three were basic questions around strings and arrays
(1 Question)
- Q1. Detailed discussion on data structures and algorithms
Albert D'souza
MCQ based on c++ and java
Solve 5 DSA questions
(3 Questions)
- Q1. 1. Buy and sell stocks 2. String balance 3. Storing algo
- Q2. String balance questions and String manipulation
- Q3. Sorting algorithms and their implementations
- Ans.
Sorting algorithms are used to arrange elements in a specific order.
Common sorting algorithms include bubble sort, selection sort, insertion sort, merge sort, quick sort, and heap sort.
Each sorting algorithm has its own time complexity and space complexity.
Sorting algorithms can be implemented in various programming languages such as C++, Java, Python, etc.
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Jun 2024. There were 2 interview rounds.
Coding test is the first round and if it is cleared you will be interviewed
(1 Question)
- Q1. Find if the given year is a leap year or not.
- Ans.
Check if a given year is a leap year or not.
A leap year is divisible by 4, but not by 100 unless it is also divisible by 400
For example, 2000 is a leap year because it is divisible by 400, while 1900 is not because it is divisible by 100 but not by 400
Interview Preparation Tips
- DSA
Skills evaluated in this interview
Mayuresh Gujar
DSA questions such as Map, linked list
I applied via Campus Placement and was interviewed in Jul 2024. There were 3 interview rounds.
Consisted of aptitude and coding output questions
Coding test was given with three questions .we have to write in on word in 45 mins
(1 Question)
- Q1. They asked puzzles and other usual questions
Medium level question based on quantitative aptitude
Medium level leetcode questions
Interview Preparation Tips
Siya Thakur
I applied via Campus Placement
Good question with nice logic
5 question in 1 hour so it's kinda difficult to manage time
Sarvesh Barapatre
Questions based on data structure
Questions based on Data structure
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