#include

#include

#include <bits/stdc++.h>

using namespace std;int main()

{

int T;

cin >> T;

cin >> ws;

for(int j = 0; j<T;j++)

{

unsigned int n;

cin >> n;

cin >> ws;

unsigned int a[n];

for(int i = 0; i<n; i++)

{

unsigned int f;

cin >> f;

cin >> ws;

a[i] = f;

}

sort(a,a + n);

cout << 2*(a[n-1]-a[0]) << endl;

}

}

This was giving correct answers with the example input but wasn’t accepted. What am i missing here?