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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