C++实现：计算小队发现能量宝石的能量平均值

```cpp #include <iostream> #include <iomanip> using namespace std; int main() { int n; cin >> n; int sum = 0; for (int i = 0; i < n; i++) { int energy; cin >> energy; sum += energy; } double average = static_cast<double>(sum) / n; cout << fixed << setprecision(2) << average << endl; return 0; } ``` ######[AI问答 | 107点数解答 | 2025-12-14 12:52:50]