去除代码中备注的阶乘和计算代码示例

```cpp #include <iostream> using namespace std; int main() { int n; cin >> n; int sum = 0; for (int i = 1; i <= n; i++) { int factorial = 1; for (int j = 1; j <= i; j++) { factorial *= j; } sum += factorial; } cout << sum << endl; return 0; } ``` ######[AI问答 | 135点数解答 | 2026-02-14 22:09:31]