Algorithms Software Interview Questions, Process, and Tips

Q1. How internally work HashMap ?
Ans. 
HashMap uses key-value pairs, hashing, and buckets for efficient data retrieval and storage.
• HashMap stores data in key-value pairs, where each key is unique.

• It uses a hash function to compute an index (hash code) for each key.

• The computed index points to a bucket in an array where the value is stored.

• If multiple keys hash to the same index (collision), they are stored in a linked list or tree structure.

• Example: For a k...read more
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Q2. Write the logic of prime number
Ans. 
A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.
• A prime number has exactly two distinct positive divisors: 1 and itself.

• Examples of prime numbers include 2, 3, 5, 7, 11, and 13.

• The number 1 is not prime because it has only one positive divisor.

• The number 4 is not prime because it can be divided by 1, 2, and 4.

• To check if a number n is prime, test divisi
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Q3. Difference between hash map and hash set?
Ans. 
HashMap stores key-value pairs; HashSet stores unique keys without values.
• HashMap allows duplicate values but not duplicate keys. Example: {1: 'A', 2: 'B', 1: 'C'} results in {1: 'C', 2: 'B'}.

• HashSet only stores unique elements. Example: {1, 2, 2} results in {1, 2}.

• HashMap provides O(1) average time complexity for get and put operations.

• HashSet provides O(1) average time complexity for add, remove, and contains operati...read more
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Never loss your Eye contact with the interviewer.

Q1. I need this job because this is a opportunity for me to achieve something.
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Q2. About your family and where are u from?
Ans. There are five members in my family mom, dad, elder brother, younger sister n myself from indore, madhya pradesh.
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Duration-60min, topics covered- financial literacy, logical thinking, reasoning and General awareness

Q1. What is the difference between EBIT and EBITDA
Ans. 
EBIT is earnings before interest and taxes, while EBITDA is earnings before interest, taxes, depreciation, and amortization.
• EBIT excludes depreciation and amortization expenses, while EBITDA includes them.

• EBITDA provides a clearer picture of a company's operating performance by removing the impact of non-operating expenses.

• EBIT is commonly used to analyze profitability, while EBITDA is often used to assess a company's ...read more
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Q2. How decrease of 10% depreciation would affect financial statements
Ans. 
A 10% decrease in depreciation would result in higher net income and retained earnings on the financial statements.
• Net income would increase as depreciation expense is lower, leading to higher profits.

• Retained earnings would also increase as net income contributes to this account.

• The company's assets would appear higher on the balance sheet due to lower accumulated depreciation.

• Investors may view the company more favor...read more
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