Submission

Score: 100

User: Jokul

Problemset: จำนวนเฉพาะก่อนหน้า

Language: c

Time: 0.002 second

Submitted On: 2025-10-08 10:41:12

#include<stdio.h>
#include<math.h>
int main(){
long long int n,a[5],count=0,f=4;
scanf("%lld",&n);
for(long long int i=n-1;i>0;i--)
{
    for(long long int j=1;i>=(j*j);j++)
    {
       if(i%j==0&&j!=1)
        {
            count=0;
            break;
        }
        else{
            count++;
        }
    }
    if(count>0){
        a[f]=i;
        f--;
    }
    if(f==-1)
    {
        break;
    }
}
if(n<17)
{
    a[0]=2;
}
for(long long int i=0;i<5;i++)
{
    printf("%d ",a[i]);
}
}