Make It Equal

#include <bits/stdc++.h>
using namespace std;

#define cin(vec) for(auto& i : vec) cin >> i
#define cin_2d(vec, n, m) for(int i = 0; i < n; i++) for(int j = 0; j < m && cin >> vec[i][j]; j++);
#define cout(vec) for(auto& i : vec) cout << i << " "; cout << "\n";
#define cout_2d(vec, n, m) for(int i = 0; i < n; i++, cout << "\n") for(int j = 0; j < m && cout << vec[i][j] << " "; j++);
#define cout_map(mp) for(auto& [f, s] : mp) cout << f << "  " << s << "\n";
#define Time cerr << "Time Taken: " << (float)clock() / CLOCKS_PER_SEC << " Secs" << "\n";
#define fixed(n) cout << fixed << setprecision(n)
#define ceil(n, m) (((n) / (m)) + ((n) % (m) ? 1 : 0))
#define fill(vec, value) memset(vec, value, sizeof(vec));
#define Num_of_Digits(n) ((int)log10(n)+1)
#define all(vec) vec.begin(),vec.end()
#define rall(vec) vec.rbegin(),vec.rend()
#define sz(x) int(x.size())
#define TC int t; cin >> t;   while(t--)
#define fi first
#define se second
#define Pair pair < int, int >
#define ll long long
#define ull unsigned long long
#define Mod  1'000'000'007
#define INF 2'000'000'000
#define EPS 1e-9
#define PI acos(-1)

void Code_Crush(){
  ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
  #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
  #endif
}

vector < int > nums;

ll F(int x){
  ll moves = 0;
  for(auto& i : nums)
    moves += abs(i - x);
  return moves;
}

ll ternary_search(int l, int r){
  while(r - l > 3){
    int g = l + (r - l) / 3, h = r - (r - l) / 3;
    if(F(g) == F(h)) l = g, r = h;
    else (F(g) < F(h) ? r = h : l = g);
  }
  ll ans = F(l++);
  for(int i = l; i <= r; i++)
    ans = min(ans, F(i));
  return ans;
}

int main(){
  Code_Crush();
  freopen("equal.in", "r", stdin);
  TC {
    int n, l, r;                                cin >> n >> l >> r;
    nums.resize(n);
    cin(nums);
    sort(all(nums));
    cout << ternary_search(l, r) << "\n";
  }
  Time
  return 0;
}