C++：输入n个整数求和并判断总和是否为质数

```cpp #include <iostream> #include <cmath> using namespace std; bool isPrime(int n) { if (n <= 1) return false; for (int i = 2; i <= sqrt(n); i++) if (n % i == 0) return false; return true; } int main() { int n, num, sum = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> num; sum += num; } cout << (isPrime(sum) ? "prime" : "not prime"); return 0; } ``` ######[AI问答 | 139点数解答 | 2025-11-22 21:21:11]