摘要:
Codeforces #401 C~D简要题解 [ C.Alyona and Spreadsheet | D.Cloud of Hashtags ] 阅读全文
摘要:
Codeforces #400 A~E简要题解 [ A.A Serial Killer | B.Sherlock and his girlfriend | C.Molly's Chemicals | D.The Door Problem | E.The Holmes Children ] 阅读全文