func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1000 + 10, INF = 1e9;   double arr[maxn];   int main() {     int n;     double mina = 0, maxa = INF;     cin >> n;     for (int i = 0; i < n; i++) cin >> arr[i];     for (int i = 0; i < n; i++) {       mina = max(mina, arr[i] * 10 / (i + 1));       maxa = min(maxa, (arr[i] + 1) * (10) / (i + 1));     }     int k1, k2;     k1 = (mina) * (n + 1) / 10;     k2 = ceil((maxa) * (n + 1) - 1) / 10;     if (k1 != k2)       cout <<  not unique  << endl;     else {       cout <<  unique  << endl;       cout << k1 << endl;     }     return 0;   }   