求个赞

```cpp
#include <bits/stdc++.h>
using namespace std;

int main() {
    int n;
    cin >> n;
    int a[1000], b[1000];
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    for (int i = 0; i < n; i++) {
        cin >> b[i];
    }
    int sum = 0;
    for (int i = 0; i < n; i++) {
        sum += a[i] * b[i];
    }
    cout <<endl<< sum;
    return 0;
}