第一个随笔

测试博客随笔功能能否使用。。。

• [ Hello world! ]
  Hello world!
  Hello world!
  Hello world!

Hello world!

Hello world!	Hello world!	Hello world!
Hello world!	Hello world!	Hello world!

• Hello world!

1. Hello world!
2. Hello world!

点击查看代码

Hello world!

\[\color{red}{Hello world!} \]

\[\sum_{1}^{114514}a_i\times \frac{114514\pi}{1919810} \]

\[a[1\cdots n],1\le i\le n \]

#ifndef ONLINE_JUDGE
#define gc() getchar()
#else
#define gc() (p1==p2&&(p2=(p1=buf)+fread(buf,1,1<<20,stdin),p1==p2)?EOF:*p1++)
#endif
#define ll long long
char buf[1<<20],*p1,*p2,pbuf[1<<20],*pp;
inline ll qr(){ll f=1,x=0,c=gc();for(;c<48||57<c;)f-=(c==45)*2,c=gc();for(;47<c&&c<58;)x=(x<<1)+(x<<3)+(c^48),c=gc();return x*f;}
inline void qw(ll x){if(x<0)putchar(45),x=-x;if(x>9)qw(x/10);putchar(x%10^48);}