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Daily data structures + algorithms flashcards to help you master LeetCode / interviews. Follow @codersmanual for all 150 ...

If you're preparing for coding interviews or revising DSA fundamentals, this video will help you understand the problem deeply ...

Neste vídeo, resolvemos o problema *Valid Sudoku* do LeetCode, explicando passo a passo como pensar na solução, ...

Resolvendo o problema LeetCode 36: Valid Sudoku! O objetivo deste desafio é determinar se um tabuleiro de Sudoku 9×9 ...

This is my first algorithm video. Sorry if i missed anything or forgot to mention. Please let me know in comments.

Valid Sudoku (Efficient validation with HashSets) 51:20 - 15. Set Matrix Zeros (Space-optimized using hashing) 55:10 - 16.