문제
풀이
#include <iostream>
using namespace std;
void solve(void) {
int n, x;
cin >> n;
int max = -1, min = 100;
for (int i=0; i<n; i++) {
cin >> x;
max = max > x ? max : x;
min = min < x ? min : x;
}
cout << (max - min) * 2 << "\n";
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t;
cin >> t;
while (t--) {
solve();
}
return 0;
}