</>

Loading

Interactive visualizations and solutions to help you master Data Structures & Algorithms. Learn by seeing, not just reading.

Navigation

Learn
Problems
About
Contact

Resources

LeetCode
HackerRank
GeeksforGeeks

Legal

Privacy Policy
Terms of Service

© 2026 BlogDSA.·Built with using Next.js & React Flow

Home
All Problems

All Problems

Browse our collection of DSA problems with interactive visualizations.

All Problems 📊Arrays 📝Strings 🔗Linked Lists 🌳Trees 🕸️Graphs 📈Dynamic Programming 🔢Sorting 🔍Searching #️⃣Hash Tables 📚Stacks & Queues 🔄Recursion 🔢Math

Showing 1 problems

120. Triangle - LeetCode Visualize Solution

120. Triangle - LeetCode Visualize Solution

This solution modifies the input triangle in-place to save space (Space Complexity: $O(1)$ extra space).