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 digit = 0;
int flag = 0;
cin >> digit;
if (2 == digit)
{
cout << "是质数";
}
else
{
for (int i = 2; i < digit; i++)
{
if (digit % i == 0)
{
//
flag = 1;
break;
}
else
{
//cout << "是质数";
continue;
}
}
if (1 == flag)
{
cout << "不是质数";
}
else
{
cout << "是质数";
}
}
return 0;
}
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