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# #algorithms

### Code challenge sites

- LeetCode
- Advent of Code
- HackerRank
- Codinggame
- Exercism
- Codewars
- Codeforces
- CodeFight
- SphereOnlineJudge
- TopCoder
- Project Euler

### Code katas

### Algorithm repositories

### Math

- Quaternions vs Rotors
- Difference between Big O, Big Omega, and Big Theta
- Distance Fields, coordinate fields, and marching parabolas

### Machine learning

### Computer Science

### Textbooks

### Algorithms

- Stream processing and probabilistic methods: Data at scale
- Wallaroo Labs Blog
- â€śWallaroo Labs writes their technical posts to include just enough algorithm + paper links while writing in a fairly accessible language, so it doesnâ€™t completely fly over my headâ€ť

- Damn cool algorithms: Levenshtein automata

### Data structures

### Interview Questions

- Google Interview Question Deconstructed: The Knightâ€™s Dialer
- Interviewing.io - free, anonymous technical interview practice with engineers from Google, Facebook, and more

### Optimization

- Reasoning about performance (in the context of search)
- Braessâ€™s Paradox - how adding roads can cause more congestion

### Algorithm fairness

### Papers

- Papers with code, sorted by stars
- The Morning Paper
- an interesting/influential/important paper from the world of CS every weekday morning