Submission

Score: 80

User: Karatat007

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.004 second

Submitted On: 2026-08-16 20:13:33

#include <bits/stdc++.h>
using namespace std;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n;
     for (int i = 2; i <= n; ++i){
        bool prime = true;

        for (int j = 2; j * j <= i; j++) {
            if (i % j == 0) {
                prime = false;
                break;
            }
        }

        if (prime) {
            cout << i << '\n';
        }
    }

    
}