摘要:
问题描述 Grammy has a sequence A of length n. Please find a permutation P such that Pi≠Ai for all i. 输入格式 There are multiple test cases. The first line co 阅读全文
摘要:
问题描述 What's the feeling of designing an icon for a school as a programmer? Now you have a chance doing it! The icon of Nanjing Foreign Language School 阅读全文