Submission

Score: 100

User: APNICHANAN

Problemset: จำนวนเฉพาะก่อนหน้า

Language: c

Time: 0.100 second

Submitted On: 2025-09-28 20:22:06

#include <stdio.h>
int main()
{
    long long n, c, cnt = 0, a[5], k = 0;
    scanf("%lld", &n);
    for (long long i = n - 1; i >= 2; i--)
    {
        c = 0;
        for (long long j = 2; j < i - 1; j++)
        {
            if (i % j == 0 && i != j)
            {
                c++;
                break;
            }
        }
        if (c == 0)
        {
            a[k] = i;
            k++;
            cnt++;
        }
        if (cnt == 5)
        {
            for (int m = 4; m >= 0; m--)
                printf("%lld ", a[m]);
            return 0;
        }
    }
}