关灯问题

#include#include#define MAXN 1000 + 10int a[MAXN];int main() {  int i, j, n, k;  memset(a, 0, sizeof(a));  scanf("%d%d", &n, &k);  for(i = 1; i <= k; i++)    for(j = 1; j <= n; j++)      if(j % i == 0) a[j] = !a[j];  for(i = 1; i <= n; i++)    if(a[i])  printf("%d ", i);  printf("\n");  return 0;}