SurePrep Associate Interview Questions and Answers

It was a mcq + coding round with computer fundamentals and aptitude + easy-medium level dsa questions.

It was an offline aptitute test with 30 questions for 30 minutes.

Q1. Detect a loop in the linked list
Ans. 
Detect a loop in a linked list by using Floyd's Cycle Detection Algorithm
• Use two pointers, slow and fast, to traverse the linked list

• If there is a loop, the fast pointer will eventually meet the slow pointer

• Initialize slow and fast pointers at the head of the linked list

• Move slow pointer by one step and fast pointer by two steps in each iteration

• If the fast pointer reaches the end of the list or meets the slow pointer,
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Q2. Find the unique element in an array
Ans. 
Find the unique element in an array of strings
• Iterate through the array and use a hashmap to store the frequency of each element

• After iterating, check the hashmap for elements with frequency 1 to find the unique element
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Q3. Tell about your projects
Ans. 
I have worked on various projects including a web application for a local business and a mobile app for tracking daily habits.
• Developed a web application using HTML, CSS, and JavaScript for a local business to manage their inventory and sales.

• Created a mobile app using React Native to track daily habits and provide reminders for healthy routines.

• Collaborated with a team to implement new features and fix bugs in existin...read more
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Q4. Write a MySQL query for selecting the id of second highest salary from employee table
Ans. 
MySQL query to select the id of second highest salary from employee table
• Use ORDER BY clause to sort salaries in descending order

• Use LIMIT to select the second row

• Use a subquery to avoid duplicates if multiple employees have the same salary
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3 dsa questions were asked

Q1. Dsa questinsxare asked
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Q2. Coding in live anlong project explanation
Ans. 
Coding in live project involves writing and implementing code in a real-world software development project.
• Understand the project requirements and scope before writing any code.

• Collaborate with team members to ensure code integration and compatibility.

• Test and debug code to ensure it meets project specifications.

• Document code changes and updates for future reference.

• Follow coding best practices and guidelines to mainta...read more
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Q3. Nothing is asked in my 3rd question
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Q4. What does the following C++ code snippet do? int x = 5; while (x > 0) { cout << x << " "; x--; } Results in a compilation error Prints "54321" Prints "545454" Prints "12345"
Ans. 
Prints numbers from 5 to 1 separated by a space
• The code initializes x to 5, then enters a while loop that prints the value of x and decrements it until x is no longer greater than 0

• The output will be '54321'
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Q5. What will be the value printed to the console? #include void function(int arr[], int size) { for (int 10; 1 size; 1++) { arr[1] = 2; } int main() { int arr[] {1, 2, 3, 4, 5); function(arr, 5);...read more
Ans. 
The value printed to the console will be 246810.
• The function modifies the array elements to be 2.

• The main function calls the function to modify the array.

• The loop in main function prints the modified array elements.
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