帮忙分析错误

# include <stdio.h>

# define n 4

struct student

{char *no[10];

float score;}a[n];

void main()

{int i,y=0,z=0;

float aver,max,min,s;

printf (“input the no and score:”);

for (i=0;i<4;i++){scanf (“%s%f”,&a[i].no,&a[i].score);};

max=a[0].score;

min=a[0].score;

for (i=0;i<4;i++){if(max<a[i].score)max=a[i].score,y=i;

          if(min>a[i].score)min=a[i].score,z=i;

          s+=a[i].score;};

aver=s/n;

printf (“the aver is:%d\nthe max no and score is:%s  %d\nthe min no and score is:%s  %d\n”,

&aver,&a[y].no,&a[y].score,&a[z].no,&a[z].score);

}

哪出错了，，，，只有输出的学号是对的，其他都错了，快哭了，，想了好久都想不出来，请大家帮帮忙~~~