Practice Conclusion: Choosing The Right Approach (42.1.9) - Grid paths
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

Conclusion: Choosing the Right Approach

Practice - Conclusion: Choosing the Right Approach

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the total number of paths from (0,0) to (3,2)?

💡 Hint: Use the formula \\( (m+n) \\choose m \\).

Question 2 Easy

Define memoization.

💡 Hint: Think of it as an optimization for recursive functions.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the number of unique paths from (0,0) to (4,2)?

6
12
20

💡 Hint: Calculate paths using combinations.

Question 2

True or False: Memoization uses recursive function calls and avoids storing results.

True
False

💡 Hint: Consider the optimization concept.

Get performance evaluation

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Calculate the number of paths from (0,0) to (5,10) with the blockages at (2,4) and (4,4). What are the totals for overlaps?

💡 Hint: Double-check paths intersecting both obstacles for accuracy.

Challenge 2 Hard

Develop a function to compute grid paths using dynamic programming. Include checks for blocked paths and return valid counts.

💡 Hint: Focus on checking prior values while filling the table dynamically.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.