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codeforce A. Vitya in the Coun B. Anatoly and Cockr C. Efim and Strange
03-23
codeforces CF_A ACM_HDU刷題錄 Codeforces Round #37 A. Vitya in the Coun
![Codeforces Round #373 (Div. 2) A. Vitya in the Countryside[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)