C++代码：去除注释后计算不大于n的正整数阶乘之和

```cpp #include <iostream> using namespace std; int factorial(int num) { int result = 1; for (int i = 1; i <= num; i++) { result *= i; } return result; } int main() { int n; cin >> n; int sum = 0; for (int i = 1; i <= n; i++) { sum += factorial(i); } cout << sum << endl; return 0; } ``` ######[AI问答 | 154点数解答 | 2026-02-14 22:08:43]