Submission

Score: 100

User: havename

Problemset: จำนวนเฉพาะก่อนหน้า

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-02 21:23:07

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,k=0,sum=0,num=0;
    cin>>n;
    vector<int>vec;
    for(int i=n-1;i>=2;i--){
        for(int j=sqrt(i);j>=2;j--){
            if(i%j!=0){
                sum=1;
            }
            else if((i)%j==0){
                sum=0;
                break;
            }
        }
        if(sum==1){
            vec.push_back(i);
            sum=0;
            num=num+1;
            if(num==5){
                break;
            }
        }
    }
    sort(vec.begin(),vec.end());
    for(int i=0;i<5;i++){
        cout<<vec[i]<<" ";
    }

}