Barclays Investment Bank Spring Intern Interview Questions and Answers

I am a highly motivated individual with a passion for learning and achieving my goals.

• I have a degree in computer science and have worked as a software developer for 3 years.

• I am proficient in multiple programming languages including Java, Python, and C++.

• I enjoy working in a team environment and collaborating with others to solve complex problems.

• In my free time, I enjoy hiking and exploring new places.

I grew up in a small town with my parents and younger sister. We were a close-knit family.

• Grew up in a small town

• Close-knit family

• Parents and younger sister

• Participated in community events

• Enjoyed outdoor activities

I enjoy reading, hiking, and trying new recipes in my free time.

• Reading books on various topics, including fiction, non-fiction, and self-improvement

• Hiking in local parks and nature reserves to explore new trails and enjoy the outdoors

• Experimenting with new recipes and cooking techniques in the kitchen

• Attending cultural events such as concerts, plays, and art exhibits

• Spending time with family and friends, playing board

I would expect a supportive work environment, opportunities for growth and development, and a commitment to excellence.

• Supportive and collaborative team culture

• Clear communication and feedback

• Opportunities for professional development and advancement

• Commitment to high-quality work and customer satisfaction

• Competitive compensation and benefits package

Yes, I have a cousin who lives in Bangalore.

• I have a cousin who has been living in Bangalore for the past 5 years.

• We keep in touch and he has shown me around the city during my visits.

• He works in the IT industry and enjoys the vibrant culture of Bangalore.

Loop in a circular linked list can be found using Floyd's cycle-finding algorithm.

• Initialize two pointers, slow and fast, both pointing to the head of the linked list.

• Move slow pointer by one node and fast pointer by two nodes in each iteration.

• If there is a loop, both pointers will eventually meet at some point.

• If there is no loop, fast pointer will reach the end of the linked list.

• Time complexity of this algorithm is

Pre-fix and post-fix operations can be performed on a string expression using appropriate operators.

• Pre-fix operation involves placing the operator before the operand in the expression.

• Post-fix operation involves placing the operator after the operand in the expression.

• Examples of pre-fix operators include ++, --, !, and ~.

• Examples of post-fix operators include ++ and --.

Data analytics is the process of examining data sets to draw conclusions about the information they contain.

• Data analytics involves collecting, cleaning, and analyzing data to identify patterns and trends.

• It can help businesses make informed decisions by providing insights into customer behavior, market trends, and operational efficiency.

• For example, a retail company can use data analytics to analyze sales data and ide...read more

Strengths include adaptability and teamwork. Weaknesses include public speaking. Non-core background allows for diverse perspective. JPMorgan Chase's reputation and opportunities attract me.

• Strengths: adaptability, teamwork

• Weakness: public speaking

• Non-core background brings diverse perspective

• Attracted to JPMorgan Chase's reputation and opportunities

I would pursue my entrepreneurial dream and start my own company.

• I would conduct market research to validate my idea and identify potential competitors.

• I would create a business plan outlining my goals, strategies, and financial projections.

• I would secure funding through investors or loans.

• I would assemble a team of talented individuals with diverse skills and experiences.

• I would continuously evaluate and adapt my busi

I would listen to both sides, gather more information, and try to find a compromise that satisfies everyone.

• Listen to both sides and understand their perspectives

• Gather more information about both ideas

• Try to find common ground and a compromise that satisfies everyone

• Encourage open communication and respect for each other's ideas

• Consider the potential impact and benefits of each idea

• Involve a neutral third party if nec

Company is a global technology company known for its innovative products and services.

• Founded in 1976 by Steve Jobs, Steve Wozniak, and Ronald Wayne.

• Known for products such as iPhone, iPad, Mac computers, and Apple Watch.

• Offers services like Apple Music, iCloud, and Apple Pay.

• Has a strong focus on design and user experience.

The algorithm reverses a given string.

• Iterate through the string from the last character to the first character.

• Append each character to a new string or an array in reverse order.

• Return the reversed string or array.

As the CEO, I would select the candidate based on their qualifications and skills, regardless of their background or personal characteristics.

• I would focus on the qualifications, skills, and experience of each candidate.

• I would consider their ability to contribute to the company's goals and objectives.

• I would ensure a fair and unbiased selection process.

• I would prioritize diversity and inclusion in the workplace.

• I woul...read more

Implement LRU cache

• LRU stands for Least Recently Used

• It is a cache eviction policy that removes the least recently used item

• It can be implemented using a doubly linked list and a hash map

• Newly accessed items are moved to the front of the list

• When the cache is full, the item at the end of the list is removed

Virtual memory is a memory management technique that allows a computer to use more memory than it physically has.

• Virtual memory uses a combination of RAM and hard disk space to store data.

• It allows programs to use more memory than is physically available.

• If a program tries to access memory that is not currently in RAM, it will be swapped in from the hard disk.

• Even if we had infinite RAM, virtual memory would still be n...read more

Find maximum length of subarray where max <= 2*min.

• Iterate through array and keep track of max and min values.

• Update max length when condition is met.

• Time complexity: O(n)