Submission

Score: 100

User: Karatat007

Problemset: จำนวนเฉพาะก่อนหน้า

Language: cpp

Time: 0.005 second

Submitted On: 2026-10-04 09:24:40

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

bool isprime(int i){
    bool prime = true;
    for(int j = 2;j * j <= i;++j){
        if(i%j == 0){
            prime = false;
            break;
        }
    }
    return prime;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n;
    int cnt = 0;
    vector<int> v;
    for(int i = n - 1;i > 0;--i){
        if(cnt == 5) break;;
        if(isprime(i)){
            v.push_back(i);
            ++cnt;
        }
    }
    sort(v.begin(),v.end());
    for(int m : v) cout << m << ' ';
}