Submission

Score: 100

User: SayRo

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.004 second

Submitted On: 2026-08-07 21:41:27

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

int main(){
    int n;
    cin>>n;
    if(n>100) return 0;
    vector<bool> prime(n+1,true);
    for(int i=2;i*i<=n;i++){
        if(prime[i]==true){
            for(int j=i*i;j<=n;j+=i){
                prime[j]=false;
            }
        }
    }
    for(int i=2;i<n;i++){
        if(prime[i]) cout << i << endl;
    }
}