Description An important topic nowadays in computer science is cryptography. Some people even think that cryptography is the only important field in computer science, and that life would not matter at all without cryptography. Alvaro is one of such persons, and is designing a set of cryptographic procedures for cooking paella. ´ Some of the cryptographic algorithms he is implementing make use of big prime numbers. However, checking if a

Description 今年暑假不AC？” “是的。” “那你干什么呢？” “看世界杯呀，笨蛋！” “@#$%^&*%…” 确实如此，世界杯来了，球迷的节日也来了，

Description 作为杭电的老师，最盼望的日子就是每月的8号了，因为这一天是发工资的日子，养家糊口就靠它了，呵呵 但是对于学校财务处的工作人员来说，这一天则是

Description 两只青蛙在网上相识了，它们聊得很开心，于是觉得很有必要见一面。它们很高兴地发现它们住在同一条纬度线上，于是它们约定各自朝西跳，直到碰面为止

Description Inhabitants of the Wonderland have decided to hold a regional programming contest. The Judging Committee has volunteered and has promised to organize the most honest contest ever. It was decided to connect computers for the contestants using a “star” topology - i.e. connect them all to a single central hub. To organize a truly honest contest, the Head of the Judging Committee has decreed