程序代码：

#include<stdio.h>
#include<math.h>
main(void)
{
    int num;
    int n = 3000;
    num = ( n% 6);
    if(!num) printf("第6个人报到了3000\n");
    else printf("第%d个人报到了3000\n", num);
    return (0);
   
}