题解 | #素数判定#
素数判定
https://www.nowcoder.com/practice/5fd9c28b1ce746dd99287a04d8fa9002
#include <bits/stdc++.h>
using namespace std;
bool isPrime(int n)
{
if(n == 1 || n == 0 || n < 0)return false;
for(int i = 2; i <= sqrt(n); i++)
{
if(n % i ==0)
return false;
}
return true;
}
int main(){
int n;
while(cin >> n){
if(isPrime(n))cout << "yes" << endl;
else cout << "no" << endl;
}
return 0;
}
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