#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main(){
int t, n, m, mn, x, ans;
vector <int> street;
cin >> t;
while(t--){
cin >> n, x = n, mn = 2111111111;
while(n--)cin >> m, street.push_back(m);
for(int i = 0; i < x; i++){
ans = 0;
for(int j = 0; j < x; j++)ans += abs(street[i] - street[j]);
if(ans < mn)mn = ans;
}
cout << mn << endl;
street.clear();
}
return 0;
}
#include <vector>
#include <algorithm>
using namespace std;
int main(){
int t, n, m, mn, x, ans;
vector <int> street;
cin >> t;
while(t--){
cin >> n, x = n, mn = 2111111111;
while(n--)cin >> m, street.push_back(m);
for(int i = 0; i < x; i++){
ans = 0;
for(int j = 0; j < x; j++)ans += abs(street[i] - street[j]);
if(ans < mn)mn = ans;
}
cout << mn << endl;
street.clear();
}
return 0;
}
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