桃子开启石门挑战：巧用 C++ 破解数字密码

```cpp #include <iostream> using namespace std; int main() { int n; cin >> n; int sum = 0; for (int i = 0; i < n; i++) { int num; cin >> num; if (num % 3 == 0) sum += 3; if (num % 5 == 0) sum += 5; if (num % 7 == 0) sum += 7; } cout << sum << endl; return 0; } ``` ######[AI问答 | 123点数解答 | 2025-12-21 16:18:52]