DelaPlex Software Software Specialist Interview Questions and Answers

Basic Aptitude questions like quantitative and logical

Programs have to written for given questions

Q1. F2F interview programming questions were asked
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Q2. Questions were asked about projects and technology used in project
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The test contains basic programming output questions and some aptitude questions.

We have to solve 5 programming questions in 1 hour. Questions are on arrays and strings.

Q1. Parenthesis balancing Reversing the string Finding the angle between hour and minute hand of clock
Ans. 
Three technical questions related to string manipulation and clock calculations.
• For parenthesis balancing, use a stack data structure to keep track of opening and closing brackets.

• To reverse a string, use two pointers starting from the beginning and end of the string and swap characters until they meet in the middle.

• To find the angle between hour and minute hand of clock, use the formula (30H - 11/2M) degrees, where H
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Q2. Prime no Add all digits in a number
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The question asks to check if a number is prime and add all its digits.
• To check if a number is prime, we can use a loop to divide it by all numbers from 2 to its square root.

• If the number is divisible by any of these numbers, it is not prime.

• To add all digits in a number, we can use a loop to extract each digit and add it to a running total.
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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
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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.
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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).
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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
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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.
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Q3. Upside down triangle pattern
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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
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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.
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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.
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Q1. Normal array and string questions
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Q1. Array and string
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Very easy basic logical questions

Easy level array string questions

2 questions asked should give optimized approach

20 questions and 40 minutes time, questions were asked from computer science basics and aptitude

5 coding questions and 1 hr time. Questions were easy to medium level and mostly asked on topics like array, strings and basic data structures

Q1. Next 3 rounds were technical interviews. Coding questions were asked in all rounds and some hr questions in 3rd interview.
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