func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(nullptr);     cout.tie(nullptr);     int t;     cin >> t;     while (t--) {       int n, a[100005];       cin >> n;       for (int i = 0; i < n; ++i) cin >> a[i];       int MIN = INT_MAX, MAX = -100;       for (int i = 0; i < n; ++i) {         if (a[i] != -1 &&             ((i > 0 && a[i - 1] == -1) || (i < n - 1 && a[i + 1] == -1))) {           MIN = min(MIN, a[i]);           MAX = max(MAX, a[i]);         }       }       if (MIN == INT_MAX && MAX == -100)         cout << 0 <<     << 0;       else {         int ans = (MAX + MIN) / 2, d = 0;         for (int i = 0; i < n - 1; ++i) {           if (a[i] == -1 && a[i + 1] != -1)             d = max(d, abs(ans - a[i + 1]));           else if (a[i] != -1 && a[i + 1] != -1)             d = max(d, abs(a[i] - a[i + 1]));           else if (a[i] != -1 && a[i + 1] == -1)             d = max(d, abs(a[i] - ans));         }         cout << d <<     << ans;       }       cout << endl;     }     return 0;   }   