『算法-ACM 竞赛-基础』C++ 快读快写

inline int read()
{
	int s=0,f=1;
	char ch=getchar();
	while(ch<'0'||ch>'9'){
		if(ch=='-')
			f=-1;
		ch=getchar();
	}
	while(ch>='0'&&ch<='9'){
		s=s*10+ch-'0';
		ch=getchar();
	}
	return s*f;
}

inline void write(int x)
{
    if(x<0){
    	putchar('-');
		x=-x;
	}
    if(x>9)
		write(x/10);
    putchar(x%10+'0');
}