摘要:
http://acm.hust.edu.cn/vjudge/contest/view.action?cid=102419#problem/E Description An infinitely long railway has a train consisting of n cars, number 阅读全文
摘要:
http://acm.hust.edu.cn/vjudge/contest/view.action?cid=102419#problem/D The famous Korean internet company has provided an internet-based photo service 阅读全文
摘要:
http://acm.hust.edu.cn/vjudge/contest/view.action?cid=102419#problem/C Description I’ve bought an orchard and decide to plant some apple trees on it. 阅读全文
摘要:
http://acm.hust.edu.cn/vjudge/contest/view.action?cid=102419#problem/B A regular palindrome is a string of numbers or letters that is the same forward 阅读全文
摘要:
http://acm.hust.edu.cn/vjudge/contest/view.action?cid=102419#problem/A In an open credit system, the students can choose any course they like, but the 阅读全文