func_code_string: #include <bits/stdc++.h>   using namespace std;   const double eps = 1e-9;   const int maxn = 1e5 + 5;   long long h[maxn], l[maxn], r[maxn];   int main() {     int n;     scanf( %d , &n);     for (int i = 1; i <= n; ++i) scanf( %lld , &h[i]);     l[1] = r[n] = 1;     for (int i = 2; i <= n; ++i) l[i] = min(h[i], l[i - 1] + 1);     for (int i = n - 1; i >= 1; --i) r[i] = min(h[i], r[i + 1] + 1);     long long ans = 0;     for (int i = 1; i <= n; ++i) {       long long now = min(l[i], r[i]);       if (now > ans) ans = now;     }     printf( %lld n , ans);     return 0;   }   