好吧贴一下代码
```cpp
#include<cstdio>
#include<iostream>
#include<cmath>
#include<algorithm>
using namespace std;
int main(){
int x[10000],y[10000],n,t,p;
scanf("%d",&n);
for (int i=1;i<=n;i++) scanf("%d %d",&x[i],&y[i]);
sort(y+1,y+n+1);
p=(n%2==0)?(y[n/2]+y[n/2+1])/2:y[n/2+1];
t=0;
for (int i=1;i<=n;i++) t+=abs(p-y[i]);
printf("%d\n",t);
return 0;
}
```
by shortbay @ 2016-05-13 23:29:46
注意管道是一条直线，不是油井……
by doby @ 2016-05-13 23:54:20
常识，大数组开在外面
by yyy2015c01 @ 2016-05-15 13:55:34