snt123

 avatar
unknown
c_cpp
a year ago
475 B
6
Indexable
#include <iostream>
#include <math.h>
using namespace std;
bool snt(int n)
{
    if(n < 2)
    {
        return 0;
    }
    for(int i = 2 ; i <= sqrt(n); i++)
    {
        if(n % i == 0)
        {
            return 0;
        }
    }
    return 1;
}
int main()
{
    int n;
    cin >> n;
    if(snt(n))
    {
        cout << n << " la so nguyen to";
    }
    else
    {
        cout << n << " khong la so nguyen to";
    }
    return 0;
}
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