Online Judge

NOIP	NOI	IOI	ACM/ICPC	Mixed	JOB
RQNOJ	OpenJudge	LUOGU	Virtual Judge	LYDSY	LeetCode
TYVJ		CodeVS	LYDSY	VIJOS	LintCode
CodeUP 1/2		UOJ	UESTC	Bailian
CodePKU		COGS	ZOJ	OIH
		51NOD	POJ	CodeForces
			JZXX	USACO
			HDU	CodeWars
			SGU