摘要:
Codeforces #402 Div1.A~E(Div2.D~F)简要题解 [ A.String Game | B.Bitwise Formula | C.Peterson Polyglot | D.Parquet Re-laying | E.Selling Numbers ] 阅读全文
摘要:
20170226 FJ四校联考 T1T2简要题解 阅读全文