Submission

Score: 100

User: Namo

Problemset: จำนวนเฉพาะก่อนหน้า

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-20 09:30:25

#include <stdio.h>

main() {
	int n;
	int check;
	int o;
	int arr[5];
	scanf("%d", &n);
	o = 0;
	for(int i = n-1; i >= 2; i--) {
		check = 1;
		for(int j = 2; j*j <= i; j++) {
			if (i % j == 0) {
				check = 0;
				break;
			}
		}
		if (check == 1) {
			//printf("%d %d\n", o,i);
			arr[o] = i;
			o++;
		}
		if (o == 5) {
			printf("%d ", arr[4]);
			printf("%d ", arr[3]);
			printf("%d ", arr[2]);
			printf("%d ", arr[1]);
			printf("%d" , arr[0]);
			return 0;
		}
	}
}