Next Permutation | Brute Force → Optimal Approach | In-Place Algorithm | StackedUp
Автор: StackedUp
Загружено: 2026-02-12
Просмотров: 6
Описание:
In this video, we break down the popular LeetCode problem Next Permutation and understand how to compute the next lexicographically greater permutation using an optimal in-place approach.
We’ll cover:
• What “next permutation” really means (intuition first)
• Brute force idea using all permutations (and why it’s inefficient)
• Step-by-step optimal in-place algorithm (interview trick)
• Finding the breakpoint, swapping, and reversing logic
• Dry run on sample inputs for clarity
• Time & space complexity explanation
This is a must-know problem for coding interviews as it teaches array manipulation, pattern observation, and in-place optimization techniques.
Perfect for:
• DSA preparation
• Coding interviews
• LeetCode practice
• Strengthening problem-solving intuition
If you found this helpful, make sure to like, share, and subscribe to StackedUp for more DSA explanations from basics to advanced.
#leetcode #dsa #arrays #codinginterview #permutations #stackedup
Повторяем попытку...
Доступные форматы для скачивания:
Скачать видео
-
Информация по загрузке:
