Submission

Score: 100

User: konthaina_TH

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.002 second

Submitted On: 2025-11-01 14:31:58

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

int main()
{
    int n;
    cin >> n;
    vector<bool> Prime(n,true);
    for (int i=2;i * i <= n; i++) {
        if(Prime[i]) {
            for (int j = i*i;j<=n;j+= i) {
                Prime[j] = false;
            }
        }
    }
    for (int i=2;i<n;i++) {
        if (Prime[i]) cout << i << "\n";
    }
    return 0;
}