func_code_string: #include <bits/stdc++.h>   using namespace std;   ifstream fin( fisier.in );   ofstream fout( fisier.out );   int v[1000000], minl[1000000], minr[1000000];   int main() {     int n, i;     cin >> n;     for (i = 1; i <= n; ++i) cin >> v[i];     for (i = 1; i <= n; ++i) minl[i] = min(minl[i - 1] + 1, v[i]);     for (i = n; i >= 1; --i) minr[i] = min(minr[i + 1] + 1, v[i]);     int res = 0;     for (i = 1; i <= n; ++i) res = max(res, min(minr[i], minl[i]));     cout << res;     return 0;   }   