Submission

Score: 100

User: pakornhun

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-08 21:11:11

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

int main(){
    int n;
    cin>>n;
    int b=true;
    for(int i=2;i<n;i++){
        if(i==2 || i==3 || i==5 || i==7 || i==11 || i==13){
            b=true;
        }else if(i%2==0){
            b=false;
        }else for(int j=3;j<=sqrt(i);j++){
            if(i%j==0){
                b=false;
            }
        }
        if(b==true){
            cout<<i<<"\n";
        }
        b=true;
    }
    return 0;
}