American Express
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2 medium dsa que - one is of binary search, one is from graph
OOPs principles are the fundamental concepts of object-oriented programming that help in designing and implementing software solutions.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Allowing a class to inherit properties and behavior from another class.
Polymorphism: The ability of different classes to be treated as instances of a common superclass.
Abstraction: ...
OS concepts refer to fundamental principles and components of operating systems.
Process management - handling processes, scheduling, and resource allocation
Memory management - managing memory allocation, virtual memory, and paging
File system - organizing and accessing files on storage devices
Device management - controlling and communicating with hardware devices
Security and protection - ensuring system and data securit...
4 coding question 1 easy ,2 medium and 1 hard
DSA
OOPS
C++
DBMS
OS
CN
BASIC MATHS
PROBABILITY
CALCULUS
I applied via Campus Placement and was interviewed before Sep 2021. There were 3 interview rounds.
2 coding question, 1 section of business aptitude and 1 section english.
A classic chess game with standard rules and pieces.
Create a board with 8x8 squares
Place 16 pieces on each side: 1 king, 1 queen, 2 rooks, 2 knights, 2 bishops, and 8 pawns
Define the movement rules for each piece
Implement special moves like castling and en passant
Check for checkmate and stalemate conditions
Allow for player vs player or player vs computer gameplay
The N Queens problem is to place N chess queens on an NxN board so that no two queens threaten each other. Minimum steps by knight is a variation of this problem.
The N Queens problem is a classic problem in computer science and can be solved using backtracking.
The minimum steps by knight variation involves placing N knights on an NxN board so that no two knights threaten each other.
This problem can also be solved using...
Find an odd occurring number among even occurring numbers.
Use XOR operation to cancel out even occurring numbers and get the odd occurring number.
Iterate through the array and XOR each element with the result variable.
The final result will be the odd occurring number.
Print the spiral order of a binary tree and matrix.
For binary tree, use level order traversal and alternate direction for each level.
For matrix, use four pointers to traverse in spiral order.
Example for binary tree: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9
Example for matrix: 1 2 3 4 -> 8 7 6 5 -> 9 10 11 12 -> 16 15 14 13
Finding pairs in an array with a given sum.
Iterate through the array and for each element, check if the difference between the given sum and the element exists in the array.
Use a hash table to store the elements of the array and their indices for faster lookup.
If there are multiple pairs with the same sum, return any one of them.
If no pair is found, return null or an empty array.
Find total number of k element with given avg in an array in minimum time complexity.
Use sliding window technique to traverse the array in O(n) time complexity.
Maintain a sum variable to keep track of the sum of elements in the window.
If the sum of elements in the window is equal to k times the given avg, increment the count.
Move the window by subtracting the first element and adding the next element in the array.
Printing non-boundary elements of a binary tree
Traverse the tree in any order (preorder, inorder, postorder)
Check if the current node is not a boundary node (not the first or last node in its level)
If it is not a boundary node, print its value
Recursively traverse its left and right subtrees
I applied via Walk-in
I listed a job that I was fired from after only a few weeks.
Listed a job where I was fired after a few weeks
Didn't provide a clear explanation for why I was let go
Didn't highlight any skills or accomplishments from that job
I admire Dr. Raghunath Anant Mashelkar, an IIT Bombay alumnus, for his contributions to science and technology.
Dr. Mashelkar is a chemical engineer and has made significant contributions to the field of polymer science.
He has also served as the Director General of the Council of Scientific and Industrial Research (CSIR) and has been awarded numerous honors, including the Padma Shri and Padma Bhushan.
Dr. Mashelkar has a...
The eurozone crisis refers to the economic and financial difficulties faced by some countries in the European Union.
The crisis began in 2009 with the Greek debt crisis and spread to other countries in the eurozone.
It was caused by a combination of factors including high levels of debt, low economic growth, and structural problems within the eurozone.
The crisis led to bailouts of several countries by the European Centra...
The Libor Scam was a manipulation of the London Interbank Offered Rate (Libor) by banks to benefit their own trading positions.
Libor is a benchmark interest rate used globally for financial products
Banks were found to have manipulated the rate to benefit their own trading positions
The scandal resulted in billions of dollars in fines for banks involved
Several high-profile bankers were also convicted for their involvemen...
Derivatives are financial instruments that derive their value from an underlying asset or security.
Derivatives can be used for hedging or speculation.
Examples of derivatives include futures, options, and swaps.
Derivatives can be traded on exchanges or over-the-counter.
Derivatives can be complex and involve significant risk.
Derivatives played a role in the 2008 financial crisis.
Failure to avoid fiscal cliff could lead to severe economic repercussions globally and in the US, with India also being affected.
The US economy could experience a recession, with a potential decrease in GDP and increase in unemployment rates
Global financial markets could experience volatility and uncertainty
India could be affected due to its close economic ties with the US, with potential impacts on trade and investmen...
Prime Services is a suite of financial services offered by investment banks to hedge funds and other institutional clients.
Prime brokerage
Securities lending
Cash management
Risk management
Trade execution
Reporting and analytics
Examples: Goldman Sachs Prime Services, J.P. Morgan Prime Services
QE stands for Quantitative Easing. It is a monetary policy used by central banks to stimulate the economy.
QE involves the central bank buying government bonds or other securities from the market to increase the money supply.
The increased money supply is intended to lower interest rates, encourage borrowing and spending, and boost economic activity.
QE is typically used when interest rates are already low and traditional...
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