二维数组小练习（有错误）

#include "stdio.h"
void main()
{
    int a[3][5]={{65,48,78,90,60},{78,92,45,66,11},{77,44,66,55,11}};
    int i,j,sum=0,average,v[3];
    for(i=0;i<3;i++)
    {
      for(j=0;j<5;j++)
      {
        sum+=a[i][j];
        
      }
      v[i]=sum/5;
      sum=0;
    }
    average=(v[0]+v[1]+v[2])/3;
    printf(" math:%d\nEnglish:\nChinese:\n",v[0],v[1],v[2]);
    printf("total:%d",average);
}

v[1]v[2]没有值，很难搞