func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, a[212345], ans = (1ll << 62);   int main() {     ios_base::sync_with_stdio(false);     cin >> n;     for (long long i = 0; i < 2 * n; ++i) {       cin >> a[i];     }     sort(a, a + 2 * n);     for (long long i = n; i < 2 * n - 1; ++i) {       ans = min(ans, (a[2 * n - 1] - a[0]) * (a[i] - a[i - n + 1]));     }     ans = min(ans, (a[n - 1] - a[0]) * (a[2 * n - 1] - a[n]));     cout << ans;   }   