Elves discover project management, and we discover JavaScript's quirky modulo behavior while cracking a safe.
Finding numbers with repeated digit patterns. Sometimes brute force is the elegant solution.
Greedy digit selection from battery banks, and a lesson in not leaving ugly code behind.
Iteratively removing accessible paper rolls from a warehouse grid. A lesson in not mutating your input.
Checking ingredient freshness and merging overlapping intervals. The classic scheduling problem in disguise.
Cephalopod math homework and the perils of destructive input parsing. Sometimes you have to go back to the drawing board.
Beam splitting, path counting, and the magic of memoization. When recursion needs a cache to survive.
3D Euclidean distances, circuit merging, and union-find without knowing it. Graph problems in disguise.