Codeforces Round #417 (Div.2)

Codeforces Round #417 (Div. 2) Codeforces Round #417 (Div. 2)A. Sagheer and CrossroadsB. Sagheer, the HausmeisterC. Sagheer and Nubian Market   A. Sagheer and Crossroads Sagheer is walking in the stre

>>阅读原文<<