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#include "iostream"#include "cmath"using namespace std;int sort(int a[],int n){int temp,all=0;for(int i=0;i<n;i++){for(int j=i+1;j<n;j++)if(a[i]>a[j]){temp=a[i];a[i]=a[j];a[j]=temp;}}for(int i=0;i<n;i++)all+=a[i];return all/n;}int main(){int M;cin>>M;while(M--){int a[100000];int N;cin>>N;for(int i=0;i<N;i++)cin>>a[i];int aver,midn=0;_int64 middle=999999999999999;aver=sort(a,N);for(int i=0;i<N;i++)if(fabs((float)(aver-a[i]))<middle){midn=i;middle=fabs((float)(aver-a[i]));}int all=0;for(int j=0;j<N;j++)all+=fabs((float)(a[j]-a[midn]));cout<<all<<endl;}return 0;}
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原文地址:http://www.cnblogs.com/sober-reflection/p/e05d2851c463c4f8e903b87b04e3807c.html