Practice Filling the Cost Table - 44.1.7 | 44. Matrix multiplication | Data Structures and Algorithms in Python
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the time complexity of multiplying two matrices?

πŸ’‘ Hint: Think about the dimensions involved.

Question 2

Easy

What should you ensure when multiplying two matrices?

πŸ’‘ Hint: Consider the dimensions.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the time complexity for the naive algorithm for matrix multiplication?

  • O(n^2)
  • O(n^3)
  • O(n^4)

πŸ’‘ Hint: Think about how you would multiply the matrices step by step.

Question 2

True or False: The order of multiplication does not impact the final result of matrix multiplication.

  • True
  • False

πŸ’‘ Hint: Consider how fewer operations can arise from specific orders.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You are given four matrices with dimensions [5, 20], [20, 10], [10, 30], [30, 5]. How would you determine the optimal order of multiplication?

πŸ’‘ Hint: Break down and compute the costs for grouping different matrices.

Question 2

Create a dynamic programming function that can calculate the cost of multiplying 'n' matrices given their dimensions.

πŸ’‘ Hint: Use a two-dimensional array for storing resultsβ€”think of how each subproblem builds on previous results.

Challenge and get performance evaluation