func_code_string: #include <bits/stdc++.h>   int main() {     long n;     scanf( %ld n , &n);     std::vector<long> blocks(n + 2);     for (long p = 1; p <= n; p++) {       scanf( %ld , &blocks[p]);     }     for (long p = 1; p <= n; p++) {       blocks[p] = std::min(blocks[p], 1 + blocks[p - 1]);     }     for (long p = n; p >= 0; p--) {       blocks[p] = std::min(blocks[p], 1 + blocks[p + 1]);     }     long final(0);     for (long p = 1; p <= n; p++) {       final = std::max(final, blocks[p]);     }     printf( %ld n , final);     return 0;   }   