Submission

Score: 80

User: kridspeedrun

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-14 09:59:58

#include <bits/stdc++.h>
using namespace std;
	bool Isprime(int n){
		if (n < 2){
			return false;
		} for (int i = 2 ; i * i <= n ; i++){
			if (n%i == 0){
				return false;
			}
		}
		return true;
	}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	int n; 
	cin >> n;
	
	for (int i = 2 ; i <= n ; i++) {
		 if (Isprime(i)){
		 	cout << i << '\n';
		 } 
	}
	return 0;
}