func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     scanf( %d , &n);     ;     vector<int> v(n);     for (int i = 0; i < n; i++) scanf( %d , &v[i]);     ;     int diff = 0;     int ans = v[0];     for (int i = 0; i < n - 1; i++) {       diff += (v[i] - v[i + 1]);       if (diff < 0) {         ans = ans + abs(diff);         diff = 0;       }     }     cout << ans << endl;     return 0;   }   