题解 | 判断一个数是不是质数
#include <iostream>
using namespace std;
int main() {
// write your code here......
int n, num = 0;
cin >> n;
for (int i = 2; i < n; i++){
if (n % i == 0){
num = 1;
cout << "不是质数" << endl;
break;
}
}
if (num == 0){
cout << "是质数" << endl;
}
return 0;
}
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