FAG Controls Interview Questions and Answers

Arrays are fixed in size and contiguous in memory, while linked lists are dynamic and non-contiguous.

• Arrays have constant time access to elements, while linked lists require traversal.

• Arrays are better for random access, while linked lists are better for insertion and deletion.

• Arrays use less memory overhead, while linked lists use more due to pointers.

• Examples: array of integers vs linked list of nodes.

• Examples: array of characters vs linked list of strings.

Explaining algorithms for various problem statements

• For sorting: bubble sort, insertion sort, merge sort, quick sort

• For searching: linear search, binary search

• For graph traversal: breadth-first search, depth-first search

• For dynamic programming: Fibonacci sequence, knapsack problem

• For string manipulation: string reversal, palindrome check

Memory management in linked lists involves allocation and deallocation of nodes.

• Dynamic memory allocation is used to create nodes in a linked list.

• Memory leaks can occur if nodes are not properly deallocated.

• Freed memory should be returned to the operating system using free() function.

• Using a garbage collector can automate memory management in linked lists.

Algorithm to find the maximum element in an array of strings

• Iterate through the array and compare each element to find the maximum

• Initialize a variable to store the maximum element and update it as needed

• Return the maximum element at the end of the iteration

Return the maximum element of an array

• Iterate through the array and keep track of the maximum element found so far

• Compare each element with the current maximum and update if a larger element is found

• Return the maximum element after iterating through the entire array