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## $\text{CF547D Mike and Fish}$ 对于横坐标相同的点两两连边,剩下一个点不管,纵坐标同理 这样形成的图是二分图,因为一个点只会在横轴上连出一条边,纵轴上连出一条边。最后黑白染色即可 ## $\text{CF547E Mike and Friends}$ 差分询问,考虑 阅读全文
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$\text{template}$ 注意 z[1]=n,从下标 $2$ 开始求 z!! $\text{Code}$ #include <bits/stdc++.h> using namespace std; typedef long long LL; const int N = 2e7 + 5; i 阅读全文
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《挪威的森林》 村上春树 The reason why I told you that I like you It doesn't have to be with you I just hope that in the future you In times of low life Don't lo 阅读全文