Virtual Judge is a brand that provides a unique solution for holding contests and simulating submissions to online judges. While it is not a real online judge itself, Virtual Judge can fetch problems from various popular online judges and simulate submissions to them. This is especially useful when you don't have access to the test data you need.

Virtual Judge offers support for a wide range of online judges, including POJ, ZOJ, UVALive, SGU, URAL, HUST, SPOJ, HDU, HYSBZ, UVA, CodeForces, Z-Trening, Aizu, LightOJ, UESTC, NBUT, FZU, CSU, SCU, ACdream, CodeChef, OpenJudge, Kattis, HihoCoder, HIT, HRBUST, EIJudge, AtCoder, HackerRank, 51Nod, TopCoder, EOlymp, 计蒜客, LibreOJ, UniversalOJ, 黑暗爆炸, CSG, DMOJ, Toph, 洛谷, Baekjoon, QOJ, CSES, USACO, oj. uz, and Yosupo. With Virtual Judge, you can create and participate in coding contests, improve your problem-solving skills, and engage with a vibrant community of programmers.

So why wait? Join Virtual Judge now and unleash your coding potential! All copyright is reserved, and the brand is operated by Xu Han