Structured paths to build depth in specific topics, one level at a time.
Build core comfort with arrays and strings — from basic traversal to hashing and two-pointer techniques.
Strengthen fundamental math-based problem solving — often the easiest wins in coding interviews if practiced well.
Move from simple recursion to recognizing overlapping subproblems — the foundation of dynamic programming.
Explore how choosing the right data structure — a stack, a sorted array, or a grid — makes problems dramatically simpler.
