func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     long long int n, res = pow(10, 18);     cin >> n;     vector<long long int> v(n);     for (long long int i = 0; i < n; i++) cin >> v[i];     sort(v.begin(), v.end());     for (long long int i = 0; i < n / 2; i++) res = min(res, v[i + n / 2] - v[i]);     cout << res;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     long long int qc = 1;     for (long long int i = 1; i <= qc; i++) solve();   }   