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

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

This video shows how Sudoku is solved using pure backtracking—try a number, move forward, and undo if it fails. We'll build the ...

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

given a push sequence , find all possible pop sequences Helpful? Please use the *Thanks* button above! Or, thank me via ...