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To check if a directed graph is cyclic or not
Use Depth First Search (DFS) algorithm to traverse the graph
Maintain a visited set to keep track of visited nodes
Maintain a recursion stack to keep track of nodes in the current DFS traversal
If a node is visited and is already in the recursion stack, then the graph is cyclic
If DFS traversal completes without finding a cycle, then the graph is acyclic
Return a random byte from a stream of bytes with equal probability.
Create a variable to store the count of bytes read
Create a variable to store the current random byte
For each byte read, generate a random number between 0 and the count of bytes read
If the random number is 0, store the current byte as the random byte
Return the random byte
Check if a binary tree is a binary search tree or not.
Traverse the tree in-order and check if the values are in ascending order.
For each node, check if its value is greater than the maximum value of its left subtree and less than the minimum value of its right subtree.
Use recursion to check if all nodes in the tree satisfy the above condition.
Algorithm to find Nth-to-Last element in a singly linked list of unknown length
Traverse the list and maintain two pointers, one at the beginning and one at Nth node from beginning
Move both pointers simultaneously until the second pointer reaches the end of the list
The first pointer will be pointing to the Nth-to-Last element
If N=0, return the last element
Parse the list only once
Print all possible permutations of an array of integers
Use recursion to swap elements and generate permutations
Start with the first element and swap it with each subsequent element
Repeat the process for the remaining elements
Stop when all elements have been swapped with the first element
Print each permutation as it is generated
Design a stack that prints the minimum element pushed in O(1)
Use two stacks, one for storing elements and another for storing minimums
When pushing an element, compare it with the top of minimum stack and push the smaller one
When popping an element, pop from both stacks
To get the minimum element, just return the top of minimum stack
To find the starting point of a loop in a linked list, use Floyd's cycle-finding algorithm.
Use two pointers, one moving at twice the speed of the other.
When they meet, move one pointer to the head of the list and keep the other at the meeting point.
Move both pointers one step at a time until they meet again, which is the starting point of the loop.
To find a number in a matrix where all rows and columns are sorted non-decreasingly. Complexity of the solution.
Use binary search to find the number in each row and column
Start from the top-right corner or bottom-left corner to optimize search
Time complexity: O(m log n) or O(n log m) depending on the starting corner
I applied via Campus Placement
Verilog coding of flip flops and FSM involves designing sequential circuits using Verilog HDL.
Understand the functionality of different flip flops like D flip flop, JK flip flop, etc.
Implement flip flops using Verilog syntax, specifying input and output ports.
Design Finite State Machines (FSM) using Verilog, defining states, transitions, and outputs.
Use Verilog constructs like always blocks, case statements, and state
I want to join Siemens because of its reputation for innovation and commitment to sustainability.
Siemens is a global leader in technology and innovation
I am impressed by Siemens' focus on sustainability and corporate social responsibility
I believe working at Siemens will provide me with opportunities for professional growth and development
I applied via Company Website and was interviewed in Mar 2024. There were 2 interview rounds.
Data structure (Queue and linked list)
Mentor Graphics interview questions for popular designations
I applied via Campus Placement
Basic aptitude , c programming, digital design
Flip flop can be implemented using a multiplexer by selecting the input based on the control signal.
Use a 2:1 multiplexer to select between the current state and the next state
Connect the output of the multiplexer to the input of the flip flop
Control signal determines which input is passed through the multiplexer
I applied via Campus Placement and was interviewed in Aug 2022. There were 2 interview rounds.
I applied via Referral and was interviewed before Jun 2023. There was 1 interview round.
I applied via Campus Placement and was interviewed in Oct 2022. There were 3 interview rounds.
General dynamics corporation share price
Data entry can be used to input information into a system or database.
Identify the specific system or database where the data needs to be entered.
Ensure that the data being entered is accurate and complete.
Follow any specific guidelines or protocols for data entry.
Regularly review and update the entered data as needed.
Examples: entering customer information into a CRM system, inputting financial data into an accounting
I applied via Approached by Company and was interviewed in Feb 2022. There were 2 interview rounds.
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