2024.1.27 14:50 cnblogs 博客文章测试

#include <cstring>
#include <cstdio>

using namespace std;

int main () {
	printf("Hello world.\n");
	
	return 0;
}

$a+b=c$
$(f\ast g)(x)=\sum _{d=1}^{n}f(d)\ast g(\lfloor \frac{n}{d}\rfloor )$

$$\begin{array}{r}d{p}_1=V\\ \text{(i > 1)}& d{p}_i=\underset{j<i}{min}d{p}_j+\frac{x_i-x_j}{2{\sqrt{r}}_j}+v_i\end{array}$$