Submission

Score: 100

User: yehpakorn

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-10 00:17:09

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

int32_t main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    
    int N;
    cin >> N;
    set<int> out;

    for (int j = 2; j < N; j++) {
        bool isPrime = true;
        for (int i = 2; i <= sqrt(j); i++) {
            if (j % i == 0) {
                isPrime = false;
                break;
            }
        }
        if (isPrime) out.insert(j);
    }

    for (int i : out) {
        cout << i << '\n';
    }
}