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I applied via Campus Placement and was interviewed in Apr 2024. There were 2 interview rounds.
Tha aptitude exam was not very easy and not that difficult. It was something which one can easily get into.
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I appeared for an interview in Jul 2019.
Design a traffic signal system
Identify the number of lanes and intersections
Determine the traffic flow and peak hours
Choose appropriate sensors and controllers
Implement a synchronization algorithm
Consider emergency vehicle prioritization
Include pedestrian crossing signals
Ensure compliance with local regulations
Hashmap is a data structure that stores key-value pairs and provides constant time complexity for insertion, deletion, and retrieval.
Hashmap uses hashing function to map keys to indices in an array
Collisions can occur when multiple keys map to the same index, which can be resolved using separate chaining or open addressing
Java implementation: HashMap
Printing patterns using code
Identify the pattern to be printed
Use loops to print the pattern
Adjust the loop variables to control the pattern
Use conditional statements to modify the pattern
Examples: printing stars, triangles, squares, etc.
Common point in linked list refers to the node where two or more linked lists intersect.
The common point can be found by traversing both linked lists and comparing the nodes.
The common point can also be found by using two pointers, one for each linked list, and moving them until they meet at the common point.
Examples include finding the intersection point of two linked lists or finding the loop in a linked list.
I applied via Company Website and was interviewed before Jun 2020. There were 5 interview rounds.
I applied via Recruitment Consultant and was interviewed in Nov 2020. There were 3 interview rounds.
posted on 7 Apr 2021
posted on 13 Nov 2021
I applied via Company Website and was interviewed in May 2021. There were 3 interview rounds.
A generic swap function swaps two values of any data type.
The function should take two parameters of any data type.
Use a temporary variable to store the value of one parameter.
Assign the value of the second parameter to the first parameter.
Assign the value of the temporary variable to the second parameter.
Search for an element in a rotated sorted linked list.
Find the pivot point where the list is rotated.
Divide the list into two sublists based on the pivot point.
Perform binary search on the appropriate sublist.
Handle edge cases such as empty list and list with only one element.
Search an element in a rotated sorted array
Find the pivot point where the array is rotated
Divide the array into two sub-arrays based on pivot point
Perform binary search on the appropriate sub-array
Repeat until element is found or sub-array size is 1
Find 5 missing numbers in an array of size 95 containing numbers in range 1 to 100.
Create a boolean array of size 100 and mark the present numbers
Iterate through the boolean array and find the missing numbers
Alternatively, use a HashSet to store the present numbers and find the missing ones
Given a Sudoku board, find possible numbers for an empty cell.
Iterate through empty cells and check possible numbers using row, column, and box constraints.
Use a set to keep track of possible numbers for each empty cell.
Return the set of possible numbers for the given empty cell.
Find integer average of 4 unsigned integers without typecasting
Add all the integers and divide by 4
Use bit shifting to divide by 4
Handle overflow by using long long data type
Use unsigned int data type for input
Code to identify 32 bit or 64 bit architecture of a processor
Check if the operating system is 32 bit or 64 bit
If OS is 32 bit, processor is 32 bit
If OS is 64 bit, check if processor supports 64 bit architecture
Use CPUID instruction to check if processor supports 64 bit architecture
Convert binary number to base 64 integer
Divide the binary number into groups of 6 bits
Convert each group of 6 bits to decimal
Map the decimal value to the corresponding base 64 character
Concatenate the base 64 characters to form the final integer
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