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Codeforces
5 题 · 0 已翻译
Codeforces Beta Round 61 (Div. 2)
2011/03/08 00:00120 分钟66
Codeforces
APetya and JavaPetya and Java
1300
仅原文
BPetya and CountrysidePetya and Countryside
1100
仅原文
CPetya and File SystemPetya and File System
1800
仅原文
DPetya and His FriendsPetya and His Friends
1700
仅原文
EPetya and PostPetya and Post
2000
仅原文