func_code_string: #include <bits/stdc++.h>   using namespace std;   int NewMessages(int right, int left, int k, int size) {     int right_border = min(right + k, size - 1);     int left_border = max(min(left + k, size - 1), max(0, right - k - 1));     return right_border - left_border;   }   int main() {     int n, k;     cin >> n >> k;     vector<int> messages(n);     for (auto& x : messages) {       cin >> x;       --x;     }     vector<int> counts(n, 0);     counts[0] = min(static_cast<int>(counts.size()) - 1, k) + 1;     for (int i = 1; i < counts.size(); ++i) {       if (messages[i] == -1) {         counts[i] =             min(static_cast<int>(counts.size()) - 1, i + k) - max(0, i - k) + 1;       } else {         counts[i] =             counts[messages[i]] +             NewMessages(i, messages[i], k, static_cast<int>(counts.size()));       }     }     for (auto x : counts) {       cout << x <<    ;     }     cout <<   n ;   }   