func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, d;     while (cin >> n >> d) {       int A[n], ans = 0;       for (int i = 0; i < n; i++) cin >> A[i];       for (int i = 1; i < n; i++) {         if (A[i] <= A[i - 1]) {           int rest = A[i - 1] - A[i], cnt = (rest / d) + 1;           A[i] += cnt * d;           ans += cnt;         }       }       cout << ans << endl;     }     return 0;   }   