#include "stdio.h"
#include "time.h"
#include "stdlib.h"
void main()
{
    srand((int)(time(0)));
    int randnumber[20];
    int n,k=0;
    for(n=1;n<=20;n++)
       {
       randnumber[n-1]=rand()%100+1;
       printf("%d ",randnumber[n-1]);
      
        while(k%5==0)
        {
          printf("\n");
           k++;
        }
       }
      
}
不知道那里错了

为什么一直为0呢