为什么不对，求解答

#include <stdio.h>
int abc()
{
    int  score[10]={67,98,75,63,82,79,81,91,66,84};
    int sum,i;
    float avr;
    for(i=0;i<9;i++)
    sum+=score[i];
    avr=sum/10;
    printf("zong%d\n",sum);
    printf("pin%f\n",avr);
    return 0;
   
}

int de()
{
    int score[10]={67,98,75,63,82,79,81,91,66,84};
    int k,h,temp;
    for(k=9;k>0;k--)
    {
        for(h=0;h<=k;h++)
        {
            if(score[h]<score[h+1])
            {temp=score[h+1];
            score[h+1]=score[h];
            score[h]=temp;
            
   
            }
        }
    }
    printf("jiangxu%d\n",score[h]);
    printf("max%d\n",score[0]);
    printf("lii%d\n",score[9]);
    return 0;
}

int main()
{abc();
de();
   
    return 0;
}