Mindstix Software Labs UI Developer Interview Questions, Process, and Tips

Aptitude test

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Q1. Puzzle , sql related questions
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One hour aptitude test, after clearing that, some basic coding questions were unlocked.

This one was face to face. Basically, the approach to the question was seeked by the HRs rather than the correct answer only.

Q1. This included two rounds, one with HR and one with CEO. Questions were based on real life logics and basic mathematics
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Q2. Based on real life and quants with some HR Questions.
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Q3. Like: What salary do you expect
Ans. 
I expect a competitive salary based on my skills, experience, and the market rate for software developers.
• Research the average salary range for software developers in your location and industry.

• Consider your level of experience, education, and any specialized skills you possess.

• Factor in the company's size, reputation, and financial stability.

• Be prepared to negotiate and discuss benefits and perks in addition to salary...read more
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5 coding questions in the first round

Q1. About yourself , about your project explaination.
Ans. Explianation about your project they'll ask fine details also.
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Q2. Find prime numbers value.
Ans. 
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
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Q1. MCQ test. 20 questions were asked and attempted in 30 minutes.
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1hr duration, test can be attempted in any language. I have attempted in python.

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
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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.
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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
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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
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Q1. Same format as above introduction and 2 coding questions
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Q2. 1 Integer to roman it took me some time to solve the question
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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).
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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
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Q1. First introduction then as all rounds 2 coding questions and then HR questions were asked
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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.
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Q3. 2 sort array of 0s and 1s in only one loop solution was using two pointers
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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).
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Q4. I solved both the questions then questions were asked on projects
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Q5. Difficulties in project how you learn new technology After two days I received mail and I was selected for software developer role
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Q1. First non repeating character in a string
Ans. 
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
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Q2. Longest substring pallandrome in a string
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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 palindrome
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Basic coding question on array and string.