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A_A_Gift_From_Orangutan.cpp
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A_A_Gift_From_Orangutan.cpp
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// Neepan Biswas
// neepanb ~ codeforces
#include <bits/stdc++.h>
using namespace std;
#define fr(i, n) for (lli i = 0; i < n; i++)
#define fr1(i, n) for (lli i = 1; i < n; i++)
#define pb push_back
#define eb emplace_back
#define sz(x) (lli) x.size()
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define debug(x) cout << '>' << #x << ':' << x << endl;
#define cd(condition, value_if_true, value_if_false) ((condition) ? (value_if_true) : (value_if_false))
using lli = long long int;
using ld = long double;
using pi = pair<lli, lli>;
using vp = vector<pi>;
using vi = vector<lli>;
using bl = bool;
using mp = map<lli, lli>;
using ump = unordered_map<lli, lli>;
using str = string;
#pragma GCC optimize("unroll-loops,O3,Ofast")
#pragma GCC target("avx2,avx,fma,bmi,bmi2,lzcnt,popcnt")
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
lli t;
cin >> t;
while (t--)
{
lli n;
cin >> n;
vi a(n);
fr(i, n)
{
cin >> a[i];
}
if (n == 1)
{
cout << 0 << endl;
}
else
{
sort(all(a));
vi b, c;
lli mini = a[0];
lli maxi = a[n-1];
fr(i, n-1)
{
b.pb(mini);
}
b.pb(maxi);
fr(i, n)
{
c.pb(maxi);
}
lli sum=0;
fr(i, n)
{
sum += c[i]-b[i];
}
cout<<sum<<endl;
}
}
return 0;
}