勇神牛逼！！！！

测试latex

$sin(\alpha + \beta)$

测试图片

测试代码块

import torch
#attention is all u need
print("Yong shen NB")

#include <iostream>
using namespace std;
int main(){
    cout<<"勇神牛逼";
    pair<int, int> p;
    int get = [&](int l, int r){
    	return l + r >> 1;  
    };
    return 0;
}