56 lines
1.0 KiB
C++
56 lines
1.0 KiB
C++
#include<iostream>
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#include<cstdio>
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#include<cstring>
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#include<algorithm>
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#define MAXN 100010
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using namespace std;
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struct point{long long x,y;}a[MAXN];
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bool cmp(point A,point B)
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{
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if(A.x<B.x) return true;
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if(A.x==B.x&&A.y<B.y) return true;
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return false;
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}
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long long ABS(long long A)
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{
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if(A<0) A=-A;
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return A;
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}
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long long work(int k,int n)
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{
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int i;
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long long ans=0;
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for(i=0;i<n;i++)
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{
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ans+=ABS(a[k].x-a[i].x);
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ans+=ABS(a[k].y-a[i].y);
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}
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return ans;
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}
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int main()
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{
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int test,n,s,e,i;
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long long ans,t;
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scanf("%d",&test);
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while(test--)
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{
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scanf("%d",&n);
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for(i=0;i<n;i++)
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{
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scanf("%I64d%I64d",&a[i].x,&a[i].y);
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}
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sort(a,a+n,cmp);
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s=n/2-250;e=n/2+250;
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if(s<0) s=0;
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if(e>n-1) e=n-1;
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ans=1;ans<<=60;
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for(i=s;i<=e;i++)
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{
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t=work(i,n);
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if(ans>t) ans=t;
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}
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cout<<ans<<endl;
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}
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return 0;
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}
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