Submission

Score: 80

User: koon

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-08 13:12:47

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

bool c_p(int n) {
    for (int i = 2; i <= sqrt(n); i++) {
        if (n % i == 0) return false;
    }
    return true;
}

int main() {
    int n;
    cin >> n;
    int i = 2;
    while (i <= n) {
        if (c_p(i)) {
            cout << i << "\n";
        }
        i++;
    }
    return 0;
}