vt code hộ e vs ạ đừng cap màn hình nhé

#include <bits/stdc++.h>
#define SmileHappy int main ()
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
SmileHappy
{
    fast
    int n;
    cin >> n;
    vector<long long> b(n);
    for (int i = 0; i < n; ++i)
        cin >> b[i];
    vector<long long> a(n);
    a[0] = b[0];
    long long sum = a[0];
    for (int i = 1; i < n; ++i)
    {
        a[i] = (i + 1) * b[i] - sum;
        sum += a[i];
    }
    for (int i = 0; i < n; ++i)
        cout << a[i] << " ";
    return 0;
}

program Main;
uses sysutils;
var
  n, i: Integer;
  b, a: array of Int64;
  t: Int64;
begin
  ReadLn(n);
  SetLength(b, n);
  for i := 0 to n-1 do
    ReadLn(b[i]);
  SetLength(a, n);
  a[0] := b[0];
  t := a[0];
  for i := 1 to n-1 do
  begin
    a[i] := (i + 1) * b[i] - t;
    t:= t + a[i];
  end;
  for i := 0 to n-1 do
    Write(a[i], ' ');
end.