多做CF的蓝题紫题，对提升脑力很有帮助，同时可以知道许多$trick$
~~为什么校内模拟赛都喜欢出cf题啊/fad~~
by tongyf @ 2020-10-25 17:32:34
@[tongyf](/user/247540) 谢谢
by BinDir0 @ 2020-10-25 17:32:50
@[tongyf](/user/247540) 题目具体难度在多少分左右比较合适呢owo
by BinDir0 @ 2020-10-25 17:33:27
@[Snow_Miku](/user/116368) 至少2000+吧……
by tongyf @ 2020-10-25 17:34:37
@[tongyf](/user/247540) okk
by BinDir0 @ 2020-10-25 17:40:10
@[Snow_Miku](/user/116368) 同问
by Infiltrator @ 2020-10-25 18:25:52