: Trees (Binary Search Trees, Heaps) and Graphs.
: Sorting (Merge, Quick), Searching (Binary Search), and Recursion. dsa.rar
: Rather than solving hundreds of random problems, successful candidates focus on coding patterns . Common patterns include: : Trees (Binary Search Trees, Heaps) and Graphs
: Arrays, Linked Lists, Stacks, and Queues. : Trees (Binary Search Trees
: Converts slow searches into constant-time lookups for frequency or duplicate checks.