Contests

Author: Benjamin Qi

Well-known programming contests and helpful tools for programming contests.

Frequent Contests

These websites hold contests that I've often participated in.

Resources
		CLIST	My Profile	extensive list of contests
		kenkoooo	AtCoder Visualizer	keep track of which AtCoder problems you've done

AtCoder
- Beginner, Regular, and Grand contests, 100-180 min
Codeforces
- Div 1-4, 2-3 hrs
DMOJ: Modern Online Judge
- usually 3 hrs, can choose your start time within a window (like USACO)

These platforms no longer actively hold contests, but it might be worth looking at past problems.

Resources
			CSAcademy	see archive
			Topcoder	Two divisions. 75 min coding, 15 min challenge phases. Solutions only tested after contest.

Resources
		Facebook	Hacker Cup	25 from R3
		AtCoder	World Tour Finals	8 from AGC

Resources
			CF-Predictor	estimate rating changes!
			CF Enhancer	recently updated
			Carrot	An alternative for CF-Predictor
			Stopstalk	keep track of friends' progress
			Code Drills	problem recommender (haven't used personally)
			CF Visualizer	compare users
			CF Command Line Tool	parse problem statements, submit, etc from command line
			CF Editor	text editor using features from above

Resources
			Wolfram Alpha
			CSAcademy Graph Editor, Geo Visualizer
			Desmos Grapher
			Diff Checker
			2D Geo Visualizer (C++)
			OEIS	integer sequences

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