Virtual Judge is not a real online judge. It can grab problems from other regular online judges and simulate submissions to other online judges. It aims to enable holding contests when you don't have the test data.

Virtual Judge currently supports the following online judges:

POJZOJUVALiveSGUURALHUSTSPOJHDUHYSBZUVACodeForcesZ-TreningAizuLightOJUESTCNBUTFZUCSUSCUACdreamCodeChefOpenJudgeKattisHihoCoderHITHRBUSTEIJudgeAtCoderHackerRank51NodTopCoderEOlymp计蒜客LibreOJUniversalOJ黑暗爆炸CSGDMOJToph洛谷BaekjoonQOJCSESUSACOoj.uzYosupo