Problem Solving In Data Structures & Algorithms... Online

Before writing a single line, clarify the input size. Is 10610 to the sixth power ? This tells you if an solution is acceptable or if you must aim for

— Donald Knuth

Searching in sorted arrays or linked lists (e.g., "Pair with a specific sum"). Problem Solving in Data Structures & Algorithms...

Get it working first, then make it fast, then make it clean.

Always identify the "Brute Force" solution first. Even if it’s inefficient, it guarantees a baseline for correctness and helps you see where the bottlenecks are. Before writing a single line, clarify the input size

Finding the shortest path in an unweighted graph or tree level-order traversal.

Look for redundant work. Are you recalculating the same value? (Use Dynamic Programming ). Are you searching linearly? (Use Binary Search or a Hash Map ). 2. The Mental Toolkit (Pattern Recognition) Get it working first, then make it fast, then make it clean

Dealing with "Top K" elements or frequently updated minimums/maximums. 3. The "Rubber Duck" Debugging Technique