Roadmap DSA Tracker Code Editor Tech Blogs

Loading question...

The ultimate platform to master JavaScript interviews. Comprehensive questions, interactive practice, and detailed explanations.

Explore

Home
Practice Arena
Browse Topics
All Questions

Resources

Learning Roadmap
Cheatsheets
Tech Blog
Community

Stay Updated

Get the latest interview questions and tips delivered to your inbox.

Join 5,000+ developers

© 2026 JS Interview Prep. Made withby developers.

Privacy Terms Cookies

Buy Me A Coffee

Unique Paths II

Hard

00:00

0 users online

Find number of unique paths from top-left to bottom-right in grid with obstacles.

Sample Input:

[[0,0,0],[0,1,0],[0,0,0]]

Sample Output:

Hints

Hint 1

Use dynamic programming

Hint 2

DP[i][j] = paths to reach cell (i,j)

Hint 3

Set DP[i][j] = 0 if cell has obstacle

Code Editor

Loading...