Submission

Score: 80

User: him

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-08 10:13:11

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int a;cin>>a;
    for(int i=2;i<=a;i++){
        int r=0;
        for(int j=2;j<=sqrt(i);j++){
            if(j==i){
                continue;
            }
            else if(i%j==0){
                r=1;
            }
        }
        if(r==0){
            cout<<i<<"\n";
        }
    }

    return 0;
}