func_code_string: #include <bits/stdc++.h>   using namespace std;   double L, R;   int n, i;   int a[10000];   double jami;   long long ans1, ans2, ans;   int main() {     L = 10.0;     R = 1000000000;     cin >> n;     for (i = 1; i <= n; i++) cin >> a[i];     for (i = 1; i <= n; i++) {       L = max(L, (double)((double)a[i] / i) * 10.0);       R = min(R, (double)((double)(a[i] + 1) / i) * 10.0);     }     R -= 0.000000001;     jami = (n + 1) * L;     jami -= 10 * a[n];     jami = floor(jami);     ans1 = jami / 10;     jami = (n + 1) * R;     jami -= 10 * a[n];     jami = floor(jami);     ans2 = jami / 10;     if (ans1 == ans2) {       cout <<  unique  << endl;       cout << a[n] + ans1 << endl;       return 0;     }     cout <<  not unique  << endl;   }   