Snapdeal Interview Questions, Process, and Tips

Q1. Simple groupby questions in pandas?
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Q2. Group by questions in SQL?
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Q1. Why you want to do this job?
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Q2. What was your yesterday's schedule?
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Q3. What is your short term goal?
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Reverse a stack without using extra space

Q1. Convert Roman to Integer
Ans. 
Convert Roman numerals to integers using a mapping of values for each symbol.
• Create a mapping of Roman numeral symbols to their corresponding integer values.

• Iterate through the input Roman numeral string from right to left.

• If the current symbol's value is less than the next symbol's value, subtract it from the total. Otherwise, add it to the total.
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Q2. Mid of linked list
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Q1. Basic SQL question.
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Q2. Order of execution
Ans. 
The order of execution refers to the sequence in which instructions or operations are executed in a program.
• The order of execution is determined by the programming language and the specific code being executed.

• Generally, code is executed line by line from top to bottom.

• However, there are exceptions such as loops, conditionals, and function calls that can alter the order of execution.

• In some programming languages, there...read more
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Q3. Window functions
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Q4. Aggregate functions
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Q1. Level order tree traversal
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Q2. Find the pair element from the array
Ans. 
Find the pair element from the array
• Iterate through the array and use a hashmap to store elements and their counts

• Check if the current element's complement exists in the hashmap

• Return the pair if found, otherwise return null
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