What are some iterative algorithms used in C++ for data structures?

What are some iterative algorithms used in C++ for data structures?

Iterative algorithms are commonly used for traversing and manipulating data structures like arrays, linked lists, and trees. Examples include iterative depth-first search (DFS) and breadth-first search (BFS) for trees and graphs.

Can you explain how iterative DFS works in C++?

Sure! Iterative DFS uses a stack to keep track of nodes. You push the starting node onto the stack, then repeatedly pop from the stack, process the node, and push its unvisited neighbors onto the stack.

What about iterative algorithms for sorting?

For sorting, iterative algorithms like bubble sort, insertion sort, and quicksort can be implemented. They repeatedly compare and swap elements until the array is sorted.

Are there any advantages to using iterative algorithms over recursive ones?

Yes, iterative algorithms often use less memory since they don't require the overhead of recursive function calls, which can lead to stack overflow for deep recursions.