Submission

Score: 100

User: GONGGONG

Problemset: จำนวนเฉพาะก่อนหน้า

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-11 15:15:11

#include <iostream>
using namespace std;

int main() {
    int n;cin>>n;
    int p=0;
    int arr[5];
    for(int i=n-1;i>=2;i--){
        if(p==5) break;
        int ok=1;
        for(int j=2;j*j<=i;j++){
            if(i%j==0) ok=0;
        }
        if(ok) {arr[p]=i;p++;}
    }
    for(int i=4;i>=0;i--) cout<<arr[i]<<' ';
}