Submission

Score: 0

User: PROb221

Problemset: จำนวนเฉพาะก่อนหน้า

Language: cpp

Time: 0.028 second

Submitted On: 2025-10-12 09:37:35

#include <iostream>
using namespace std;

int main() 
{
    int n,i,j,count=5;
    cin >> n;
    bool check[n]={};
    for(i=2;i<n;i++) {
      if(check[i]==0) {
        for(j=i+i;j<n;j+=i) {
          check[j]=1;
        }
      }
    }
    for(i=n-1;i>=2,count>0;i--) {
      if(check[i]==0) {
        cout << i << " ";count--;
      }
    }
    return 0;
}