Submission

Score: 0

User: pond4545

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-01 14:08:05

#include<iostream>
#include<math.h>
using namespace std;

int main()
{
    int x;
    cin >> x;
    for (int i = 2; i<=x ; i++)
    {
        bool prime=true;
        for (int j = 2; j<=sqrt(i) ; j++)
        {
            if (i%j==0)
            {
                prime=false;
                break;
            }
        }
        if(!prime)
        {
            cout << i <<'\n';
        }
    }
    return 0;
}