Submission

Score: 100

User: him

Problemset: จำนวนเฉพาะ (2560)

Language: cpp

Time: 0.003 second

Submitted On: 2025-09-08 10:43:45

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

int main() {
    int a;
    cin >> a;

    for (int i = 2; i < a; i++) { // แก้จาก i <= a เป็น i < a
        bool isPrime = true;
        for (int j = 2; j <= sqrt(i); j++) {
            if (i % j == 0) {
                isPrime = false;
                break;
            }
        }
        if (isPrime) {
            cout << i << "\n";
        }
    }

    return 0;
}