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Recursion becomes easy once you understand what happens behind the scenes in the call stack. In this video, you'll learn ...

Recursion is powerful but risky if used blindly. Iteration is efficient but not always clean. In this video, you'll learn exactly when to ...

String recursion problems are extremely common in interviews. This video teaches you how to break strings into smaller ...

Most people “memorize” recursion, but interviewers want clean logic. This video teaches the hypothesis / induction method to ...

Backtracking becomes slow when you explore useless branches. In this video, you'll learn pruning techniques used in real ...

This is the most important recursion pattern for backtracking. In this video, you'll learn the “pick or not pick” approach to generate ...

This is one of the most important foundations in DSA because it affects performance and correctness. We'll break it down with ...

Unlock the mystery of recursion in programming! In this video, we break down the concept of recursion with simple examples, ...

Big-O can feel confusing, but it doesn't have to be. In this video, you'll learn how to measure how fast your code grows as input ...

Grid backtracking problems are super common (maze paths, word search, island paths). This video teaches the exact template to ...

We can write assembly programs now, but we can't reuse code cleanly. If we have an addition routine and want to call it from ...