func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int k;     cin >> k;     int x;     cin >> x;     int* a;     a = new int[n + 1];     for (int i = 1; i <= n; i++) {       cin >> a[i];     }     int index;     index = n;     while (k > 0) {       a[index] = x;       index--;       k--;     }     int sum;     sum = 0;     for (int i = 1; i <= n; i++) {       sum = sum + a[i];     }     cout << sum;     return 0;   }   