这个哪里错了

#include<stdio.h>
#define N 16
typedef struct
{
    char num[10];
    int s;
} STREC;
int fun(STREC *a, STREC *b)
{
    int i,j=0,t;
    t=a[0].s;
    for(i=1;i<N;i++)
        if(a[i].s<t)
        t=a[i].s;
    }
    for(i=0;i<N;i++)
    {
        if(a[i].s==t)
        b[j++]=a[i];
      
    }
    return j;
}
int main()
{STREC  s[N]={{"GA05",85},{"GA03",76},{"GA02",69},{"GA04",85},{"GA01",91},{"GA07",72},{"GA08",64},{"GA06",87},{"GA015",85},{"GA013"91,},{"GA012",64},{"GA014",91},{"GA011",91},{"GA017",64},{"GA018",64},{"GA016",72}};
  STREC h[N];
  int i,n;
  n=fun(s,h);
  prinntf("The %d lowest score: \n",n);
  for(i=0;i<n;i++)
  printf("%s %4d\n",h[i].num,h[i].s);
  printf("\n");
   
   
}