Submission

Score: 100

User: FIrmTInn

Problemset: จำนวนเฉพาะก่อนหน้า

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-13 08:31:51

#include<iostream>
#include<cmath>
using namespace std;
int main(){
    int n, arr[5] = {0},count = 0;
    cin >> n;
    for(int i=n-1;i>=2;i--){
        bool prime = true;
        for(int j=sqrt(i);j>=2;j--){
            if(i % j == 0){
                prime = false;
                break;
            }
        }
        if(count >= 5){
            break;
        }
        if(prime){
            arr[count] = i;
            count++;
        }
    }
    for(int i=4;i>=0;i--){
        if(arr[i] == 0){
            continue;
        }
        cout << arr[i] << " ";
    }



    return 0;
}