Raja Software Labs Interview Questions, Process, and Tips

Q1. Normal array and string questions
Add your answer

Q1. Array and string
Add your answer

Basic Aptitude questions mainly on quantitative

Google docs was shared which has 5 coding questions mainly on array and string.

Q1. Interviewer introduced himself , then told the flow of interview ie. 2 coding question will be asked then he asked to introduce myself
Add your answer
Q2. Occurance of characters in string
Ans. 
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.
Answered by AI
View 1 more answer
Q3. Angle between hour and minute hand of clock at a given time
Ans. 
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
Answered by AI
Add your answer
Q4. Both question I was able to solve quickly interview was sheduled for one hour but i solved questions in 23 minutes so interview ended. I was called for second techinal round
Add your answer

Q1. Same format as above introduction and 2 coding questions
Add your answer
Q2. 1 Integer to roman it took me some time to solve the question
Add your answer
Q3. 2 given sum and we have to print all the subsequences in array with given sum
Ans. 
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).
Answered by AI
Add your answer
Q4. The interview took almost 45 minutes and i was able to solve both questions so i was selected for third round ie technical + HR
Add your answer

Q1. First introduction then as all rounds 2 coding questions and then HR questions were asked
Add your answer
Q2. 1 print string without taking repeating characters eg helper - helpr
Ans. 
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.
Answered by AI
View 1 more answer
Q3. 2 sort array of 0s and 1s in only one loop solution was using two pointers
Ans. 
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).
Answered by AI
View 1 more answer
Q4. I solved both the questions then questions were asked on projects
Add your answer
Q5. Difficulties in project how you learn new technology After two days I received mail and I was selected for software developer role
Add your answer

20 questions were given.
aptitude + simple coding output based.

5 questions were shared on a doc file. We need to code them paste their solutions in the file. Level was easy to medium. Array-string based Questions.

Q1. There Were 3 Technical rounds. In 1st Round Basic coding Questions were Asked on Array like find minimum angle between hour and minute hand. 0,1 array sort and there was another question too which I don't...read more
Add your answer
Q2. Find minimum angle between hour and minute hand.
Ans. 
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.
Answered by AI
Add your answer
Q3. 0, 1 array sort (keep complexity low)
Ans. 
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).
Answered by AI
Add your answer

Q1. Then on next day Technical Round 2 happened Same another Interviewer and same process. Round was 1 hour long. I was given a question and I had to solve it. I was not asked puzzles but some of my friends we...read more
Add your answer
Q2. Maximum span of 1 in a 0,1 array
Ans. 
Find the maximum span of 1 in a 0,1 array.
• Iterate through the array and keep track of the first and last occurrence of 1.

• Calculate the difference between the last and first occurrence of 1.

• Repeat the process for all 1's in the array and return the maximum difference.
Answered by AI
Add your answer
Q3. Upside down triangle pattern
Add your answer

Q1. Next day Technical Round 3 This time my interviewer was a Senior Engineer Interview round was 1 hour+ I was given 2 coding questions then hr questions were asked. In hr they asked me a lot regarding my pro...read more
Add your answer
Q2. First non repeating Character
Ans. 
Find the first non-repeating character in a string.
• Create a hash table to store the frequency of each character in the string.

• Iterate through the string and update the frequency in the hash table.

• Iterate through the string again and return the first character with a frequency of 1.
Answered by AI
Add your answer
Q3. Sort a binary array using one traversal and no extra space
Ans. 
Sort a binary array using one traversal and no extra space.
• Use two pointers, one starting from the beginning and one from the end of the array.

• Swap the elements if the left pointer points to 1 and the right pointer points to 0.

• Continue traversing until the pointers meet in the middle.
Answered by AI
View 1 more answer

Basic Aptitude questions like quantitative and logical

Programs have to written for given questions

Q1. F2F interview programming questions were asked
Add your answer
Q2. Questions were asked about projects and technology used in project
Add your answer

5 questions written coding test
Basic question on string and array manipulation

Q1. 2nd smallest number
Ans. 
Find the 2nd smallest number in an array of integers.
• Sort the array in ascending order

• Return the second element in the sorted array
Answered by AI
Add your answer

There were total 3 rounds and it consists of Basic array and string coding question