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The subtotal function in Excel allows you to perform calculations on a filtered range of data.
The subtotal function can perform various calculations such as sum, average, count, etc. on a filtered range of data.
It ignores other subtotal functions within the range, preventing double counting.
You can specify which type of calculation to perform by using different function numbers.
For example, =SUBTOTAL(9, A1:A10) wi...
Custom contracts in futures and forwards are agreements between two parties that are tailored to meet specific needs or requirements.
Custom contracts allow parties to negotiate terms such as quantity, price, delivery date, and other specifications.
These contracts are not standardized like exchange-traded futures and forwards, making them flexible and customizable.
Examples of custom contracts include over-the-count...
This code swaps two numbers without using any Python libraries, utilizing basic arithmetic operations.
Use a temporary variable to hold one of the numbers during the swap.
Alternatively, use arithmetic operations (addition and subtraction) to swap without a temp variable.
Example using a temp variable: temp = a; a = b; b = temp.
Example using arithmetic: a = a + b; b = a - b; a = a - b.
SQL ranking functions help categorize data into ranks, with options for dense ranking and partitioning for grouped analysis.
RANK() assigns a unique rank to each row within a partition, with gaps for ties. Example: RANK() OVER (PARTITION BY department ORDER BY salary DESC).
DENSE_RANK() also assigns ranks but without gaps for ties. Example: DENSE_RANK() OVER (PARTITION BY department ORDER BY salary DESC).
PARTITION B...
SQL code using GROUP BY, HAVING, and COUNT to analyze data effectively.
GROUP BY aggregates data based on specified columns. Example: SELECT department, COUNT(*) FROM employees GROUP BY department;
HAVING filters aggregated data. Example: SELECT department, COUNT(*) FROM employees GROUP BY department HAVING COUNT(*) > 10;
COUNT() function counts rows or non-null values. Example: SELECT COUNT(*) FROM sales WHERE am...
To remove a loop in a linked list, we can use Floyd's Cycle Detection Algorithm.
Use Floyd's Cycle Detection Algorithm to find the loop in the linked list.
Once the loop is detected, find the starting point of the loop using Floyd's algorithm.
Break the loop by setting the next pointer of the node before the starting point of the loop to null.
Implement a stack using two queues
Use two queues to simulate stack operations
Push operation: Enqueue the element to queue 1
Pop operation: Dequeue all elements from queue 1 to queue 2, dequeue the last element from queue 1, then swap the queues
Top operation: Return the front element of queue 1
Empty operation: Check if both queues are empty
Black Scholes Pricing of Derivatives is a mathematical model used to calculate the theoretical price of European-style options.
Developed by Fischer Black, Myron Scholes, and Robert Merton in 1973.
Factors in the current stock price, strike price, time to expiration, volatility, risk-free interest rate, and dividends.
Assumes the option can only be exercised at expiration (European-style).
Used to determine the fair m...
Yield on a bond can be calculated by dividing the annual interest payment by the current market price of the bond.
Yield on a bond is calculated by dividing the annual interest payment by the current market price of the bond.
The formula for calculating yield on a bond is: Yield = (Annual Interest Payment / Current Market Price) * 100%
For example, if a bond pays $50 in annual interest and is currently priced at $1,0...
To find a loop in a linked list, use Floyd's Cycle Detection Algorithm.
Use two pointers - slow and fast, where slow moves one step at a time and fast moves two steps at a time.
If there is a loop, the two pointers will eventually meet at some point within the loop.
To find the starting point of the loop, reset one pointer to the head and move both pointers one step at a time until they meet again.
I applied via Naukri.com and was interviewed in Sep 2024. There were 3 interview rounds.
1 python question and 1 sql question for coding and rest were the mcqs based on sql and python.
This code checks if two strings are anagrams by comparing sorted characters or using a frequency count.
An anagram is a word formed by rearranging the letters of another, e.g., 'listen' and 'silent'.
Method 1: Sort both strings and compare. Example: sorted('listen') == sorted('silent').
Method 2: Count character frequencies using collections.Counter. Example: Counter('listen') == Counter('silent').
Consider case sensitivit...
SQL code using GROUP BY, HAVING, and COUNT to analyze data effectively.
GROUP BY aggregates data based on specified columns. Example: SELECT department, COUNT(*) FROM employees GROUP BY department;
HAVING filters aggregated data. Example: SELECT department, COUNT(*) FROM employees GROUP BY department HAVING COUNT(*) > 10;
COUNT() function counts rows or non-null values. Example: SELECT COUNT(*) FROM sales WHERE amount ...
SQL ranking functions help categorize data into ranks, with options for dense ranking and partitioning for grouped analysis.
RANK() assigns a unique rank to each row within a partition, with gaps for ties. Example: RANK() OVER (PARTITION BY department ORDER BY salary DESC).
DENSE_RANK() also assigns ranks but without gaps for ties. Example: DENSE_RANK() OVER (PARTITION BY department ORDER BY salary DESC).
PARTITION BY div...
I applied via Company Website and was interviewed in Sep 2024. There was 1 interview round.
Custom contracts in futures and forwards are agreements between two parties that are tailored to meet specific needs or requirements.
Custom contracts allow parties to negotiate terms such as quantity, price, delivery date, and other specifications.
These contracts are not standardized like exchange-traded futures and forwards, making them flexible and customizable.
Examples of custom contracts include over-the-counter (O...
I applied via Recruitment Consulltant and was interviewed in Dec 2024. There was 1 interview round.
A Credit Default Swap (CDS) is a financial derivative that allows an investor to 'swap' or transfer credit risk with another party.
CDS are used to hedge against the risk of default on debt instruments, such as bonds.
For example, if an investor holds a corporate bond, they can buy a CDS to protect against the risk of the company defaulting.
The buyer of a CDS pays periodic premiums to the seller, who agrees to compensate...
posted on 31 May 2024
I appeared for an interview in May 2024.
Hacker rank test, coding for one big question, ample time given of around 90 mins
Design a historical pricing app for equity
Utilize a database to store historical pricing data for equities
Implement a user-friendly interface for users to search and view historical pricing
Include features such as chart visualization, comparison tools, and customizable date ranges
Consider incorporating real-time data updates and alerts for price changes
Design an app to bring data from external vendors in different formats
Create a data ingestion pipeline to collect data from various vendors
Implement data transformation processes to standardize formats
Utilize APIs or web scraping techniques to retrieve data from vendors
Use a database to store and manage the collected data
Implement data validation and cleansing techniques to ensure data quality
Was asked 30 mcq technical questions and one dsa question which as basic string based.
To remove a loop in a linked list, we can use Floyd's Cycle Detection Algorithm.
Use Floyd's Cycle Detection Algorithm to find the loop in the linked list.
Once the loop is detected, find the starting point of the loop using Floyd's algorithm.
Break the loop by setting the next pointer of the node before the starting point of the loop to null.
Implement a stack using two queues
Use two queues to simulate stack operations
Push operation: Enqueue the element to queue 1
Pop operation: Dequeue all elements from queue 1 to queue 2, dequeue the last element from queue 1, then swap the queues
Top operation: Return the front element of queue 1
Empty operation: Check if both queues are empty
I applied via Company Website and was interviewed in Jun 2024. There were 3 interview rounds.
3 questions, medium hard
I applied via Company Website and was interviewed in Jul 2024. There were 2 interview rounds.
Find the missing number in a permutation array
Iterate through the array and calculate the sum of all numbers
Calculate the sum of all numbers from 1 to n (where n is the length of the array)
Subtract the sum of the array from the sum of all numbers to find the missing number
To find a loop in a linked list, use Floyd's Cycle Detection Algorithm.
Use two pointers - slow and fast, where slow moves one step at a time and fast moves two steps at a time.
If there is a loop, the two pointers will eventually meet at some point within the loop.
To find the starting point of the loop, reset one pointer to the head and move both pointers one step at a time until they meet again.
Leetcode medium level questions, sql query, puzzle, test writing for api
I applied via Recruitment Consulltant and was interviewed in Jul 2024. There was 1 interview round.
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