i
Cadence Design
Systems
Filter interviews by
Efficiently finding the median from a stream of integers requires maintaining a balanced data structure for dynamic data.
Use Two Heaps: Maintain a max-heap for the lower half and a min-heap for the upper half of the numbers to efficiently find the median.
Insertion: When a new number is added, decide which heap to insert it into based on its value relative to the current medians.
Balancing Heaps: After each insertio...
Sort an array of strings based on a user-defined order.
Define the custom order as a string, e.g., 'cba'.
Create a mapping of characters to their indices for quick lookup.
Use a sorting function that utilizes the mapping to sort the array.
Example: For array ['a', 'b', 'c'] and order 'cba', the result should be ['c', 'b', 'a'].
A copy constructor creates a new object as a copy of an existing object, ensuring proper resource management.
A copy constructor is a special constructor in C++ that initializes an object using another object of the same class.
Syntax: ClassName(const ClassName &obj) { /* copy data */ }
Used for deep copying when an object contains pointers to dynamically allocated memory.
Example: If class A has a pointer, the co...
Allocating memory for a vector involves reserving space for its elements to optimize performance and avoid reallocations.
Use `std::vector<Type> vec;` to declare a vector.
To allocate memory, use `vec.reserve(size);` to set capacity without changing size.
Example: `vec.reserve(10);` reserves space for 10 elements.
To initialize with a specific size, use `std::vector<Type> vec(size);`.
Example: `std::vector&...
Determine the minimum number of platforms required for a train station to avoid delays during peak arrival times.
Identify the arrival and departure times of trains.
Sort the arrival and departure times.
Use a two-pointer technique to track the number of platforms needed.
Increment the platform count when a train arrives before the previous one departs.
Example: For arrivals [10:00, 10:15, 10:30] and departures [10:10,...
Merge overlapping intervals in a list to create a consolidated list of intervals.
Sort the intervals by their start time. Example: [[1,3],[2,6],[8,10],[15,18]] becomes [[1,3],[2,6],[8,10],[15,18]].
Initialize an empty list to hold merged intervals.
Iterate through the sorted intervals and compare the current interval with the last merged interval.
If they overlap (current start <= last end), merge them by updating ...
A virtual table is a mechanism used in object-oriented programming to support dynamic method resolution for polymorphism.
Virtual tables (vtables) store pointers to virtual functions of a class.
Each class with virtual functions has its own vtable.
When an object is created, it holds a pointer to its class's vtable.
Example: In C++, if class A has a virtual function, derived class B can override it, and the vtable wil...
A FIFO checker is a verification component used to monitor and validate the behavior of a First-In-First-Out buffer in a design.
Implement a monitor that tracks the input and output operations of the FIFO buffer
Check that the data is read out in the same order it was written in
Verify that the FIFO buffer does not overflow or underflow
Use assertions to flag any violations of FIFO behavior
Example: Monitor the write a...
C++ is a powerful, high-performance programming language with features like OOP, templates, and memory management.
C++ supports Object-Oriented Programming (OOP) with classes and inheritance. Example: class Base { ... }; class Derived : public Base { ... };
C++ allows operator overloading, enabling custom behavior for operators. Example: class Complex { public: Complex operator+(const Complex& other) { ... }; };
...
Virtual functions allow a function to be overridden in a derived class, enabling polymorphic behavior.
Virtual functions are declared in a base class with the 'virtual' keyword.
They are meant to be overridden in derived classes to provide specific implementations.
When a virtual function is called through a base class pointer or reference, the actual function to be executed is determined at runtime based on the obje...
A dictionary can be represented in memory using a hash table. Worst case complexity of search is O(n).
A hash table can be used to represent a dictionary in memory
Each key-value pair is hashed to a unique index in the table
Search operation involves computing the hash of the key and looking up the corresponding index
Worst case complexity of search is O(n) when all keys hash to the same index
Our company's software is a project management tool for businesses.
Helps businesses manage projects and tasks efficiently
Allows team collaboration and communication
Provides real-time progress tracking and reporting
Integrates with other business tools like calendars and email
Customizable to fit specific business needs
Count the number of set bits in a given number's binary representation.
Convert the number to binary representation using bitwise operators.
Iterate over the binary representation and count the number of set bits.
Alternatively, use built-in functions like bin() and count() in Python.
The time complexity of the algorithm should be O(log n).
Cell padding is the space between the content of a cell and its border in a table.
Cell padding can be set using CSS or HTML attributes.
It affects the appearance of the table and can improve readability.
Padding can be set individually for each cell or for the entire table.
Example:
Lead Software Engineer
158
salaries
| ₹25.6 L/yr - ₹43.5 L/yr |
Software Engineer2
116
salaries
| ₹17 L/yr - ₹29 L/yr |
Principal Software Engineer
105
salaries
| ₹35.9 L/yr - ₹60 L/yr |
Software Engineer
91
salaries
| ₹14.1 L/yr - ₹25.7 L/yr |
Lead Engineer
71
salaries
| ₹24.2 L/yr - ₹35.8 L/yr |
Synopsys
Qualcomm
Intel
Molex