1 int Scan()///输入外挂
2 {
3 int res=0,ch,flag=0;
4 if((ch=getchar())=='-')
5 flag=1;
6 else if(ch>='0'&&ch<='9')
7 res=ch-'0';
8 while((ch=getchar())>='0'&&ch<='9')
9 res=res*10+ch-'0';
10 return flag?-res:res;
11 }
1 namespace IO{
2 const int MAX = 4e7; // 1e7 == 11000kb
3 char buf[MAX]; int c, sz; //预先缓冲到数组buf
4 void begin(){
5 c = 0;
6 sz = fread(buf, 1, MAX, stdin);
7 }
8 inline bool read(int &t){
9 while(c < sz && buf[c] != '-' && (buf[c] < '0' || buf[c] > '9')) c++;
10 if(c >= sz) return false;
11 bool flag = 0; if(buf[c] == '-') flag = 1, c++;
12 for(t = 0; c < sz && '0' <= buf[c] && buf[c] <= '9'; c++) t = t*10+buf[c]-'0';
13 if(flag) t=-t;
14 return true;
15 }
16 }
17
18 int main()
19 {
20 IO::begin();
21 while(IO::read(N)){
22 for(int i = 1;i <= N; i++) IO::read(a[i].l);
23 for(int i = 1;i <= N; i++)IO::read(a[i].r)；
24 }
25 return 0;
26 }
