Submission

Score: 80

User: Nuttykub

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-01 07:58:49

#include <bits/stdc++.h>
using namespace std;
bool isprime(int t){
    if (t<=1) return false;
    if (t == 2) return true;
    for (int i = 2;i <= sqrt(t);i++){
        if (t%i == 0) return false;
    }
    return true;
}

int main(){
    int n;
    cin >> n;
    for (int i = 2;i <= n;i++){
        if (isprime(i)) cout << i <<endl;
    }
}