题解 | #判断一个数是不是质数#
判断一个数是不是质数
https://www.nowcoder.com/practice/b8bb5e7703da4a83ac7754c0f3d45a82
#include <iostream> using namespace std; int main() { // write your code here...... int a ; cin >> a; for( int i = 2; i <= a; i++){ if(i == a){ cout << "是质数" << endl; break; } if( a % i == 0){ cout << "不是质数" << endl; break; } } return 0; return 0; }