像我这样的菜鸡，oj还是搞过不少的，我给你推荐一下我目前的oj的使用情况 首先我用oj是分成两累的：刷题、比赛 刷题： 焦作一中oj（不对外开放）、luogu、loj、acwing 这四个oj你会发.
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