Submission

Score: 80

User: KurtCobain

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.005 second

Submitted On: 2025-10-02 14:27:32

#include <iostream>
using namespace std;

int main(){
    int n;
    cin >> n;
    int arr[120] = {0};
    for (int i=2;i<=n;i++){
        if (arr[i] == 1) continue;
        cout << i << '\n';
        for (int j=i*2;j<=n;j+=i){
            arr[j] = 1;
        }
    }
}