- Introduction to Competitive Programming
- Youtube playlist - Coding blocks
- Algorithms with problems
- Hackerearth Codemonk
- Introduction to programming contests - Stanford
- Data structures and algorithms- Codechef discuss
- Recommended reading
- Nice blog for beginners
- ICO preparatory material - CC
- Collection of CP resources - Google drive
- Commonlounge - Cp from beginner-expert
Some other useful links I found