Submission

Score: 100

User: cjqwerty

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-10 00:23:20

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

int main() {
    int n;
    bool j;
    cin>>n;
    if(n >= 2){
        cout<<2<<"\n";
    }
    for(int i=3;i<n;i+=2){
        j = true;
        for(int a=3;a<=sqrt(i);a+=2){
            if(i%a == 0){
                j = false;
            }
        }
        if(j == true){
            cout<<i<<"\n";
        }
    }
}