自定义函数之数字后移

#include<stdio.h>

void run_run(int arr[],int brr[],int a,int c)

{

    int b=0;

      for(b=0;b<a;b++)

    {

        if(b+c<a)

        brr[b+c]=arr[b];

        else

        brr[b+c-a]=arr[b];

    }

}

int main()

{

int a,b,c;

scanf("%d",&a);

int arr[a],brr[b];

for(b=0;b<a;b++)scanf("%d",&arr[b]);

scanf("%d",&c);

    run_run(arr,brr,a,c);

    for(b=0;b<a;b++)printf("%d ",brr[b]);

return 0;

}