题解 | #判断一个数是不是质数#

#include <iostream>
using namespace std;

int main() {

    int n, i;
    cin >> n;
    // write your code here......
    if (n > 1) {
        for (int i = 2; i <n; i++) {
            if (n % i == 0) {
                cout << "不是质数";
                return 0;
            }
        }
        }
        cout << "是质数";
    return 0;
}