Practice Generating Permutations (34.2) - Generating permutations - Data Structures and Algorithms in Python
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Generating Permutations

Practice - Generating Permutations

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is backtracking in programming?

💡 Hint: Think about how you approach solving a puzzle.

Question 2 Easy

Define a permutation.

💡 Hint: Consider how different sequences can be formed from a set.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is backtracking?

A technique for sequential searching
A way to generate combinations
Incrementally building a solution and abandoning invalid ones

💡 Hint: Remember how this technique helps solve problems like mazes.

Question 2

True or False: A permutation is a rearrangement of the same set of elements.

True
False

💡 Hint: Think of how letters can be rearranged to form words.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a string 'WORD', generate all its permutations and explain the algorithm used.

💡 Hint: Think about building a tree structure for permutations.

Challenge 2 Hard

Using the array [3, 2, 1], find the next permutation and justify your steps.

💡 Hint: Identify the longest decreasing sequence to understand what remains.

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Reference links

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