下列给定程序中，函数fun()的功能是：对N名学生的学习成绩，按从高到低的顺序找出前叫m≤10)名学生来，并将这些学生数据存放在一个动态分配的连续存储区中，此存储区的首地址作为函数值返回。
请改正程序中的错误，使它能得出正确的结果。
注意：不要改动main函数，不得增行或删行，也不得更改程序的结构．
试题程序：
#include ＜conio.h＞
#include ＜string.h＞
#include ＜stdio.h＞
#include ＜alloc.h＞
#define N 10
typedef struct ss
{char num[10];
int s;
} STU;
STU *fun{STU a[], int m)
{ STU b[N] ,*t;
int i, j,k;
/*************found**************/
*t=calloc (m, slzeof (STU));
for(i=0;i＜N;i++) b[i]=a[i];
for(k=0; k＜m; k++)
{ for (i=j=0;i＜N;i++)
if (b[i].s＞b[j].s) j=i;
/*************found**************/
t[k].num=b [j].num;
t[k].s=b[j] s;
b[j].s=0;
}
return t;
}
outresult(STU a[],FILE *pf)
{ int i;
for (i=0; i＜N; i++)
fprintf(pf, "No=%s Mark-%d\n ",
a [i] .num, a[i].s);
fprintf(pf, "\n\n ");
}
main ( )
{ STU a[N]={{ "A01 ",81},{ "A02 ",89},
{ "A03 ",66},{ "A04 ",87},{ "A05 ",77},
{ "A06 ",90},{ "A07 ",79},{ "A08 ",61},
{ "A09 ",80},{ "Al0 ",71}};
STU *pOrder;
int i, m;
clrscr ();
printf ("*****THE RESULT***** \n");
outresult (a, stdout);
printf ("\nGive the number of the students
who have better score: ");
scanf ("%d", &m);
while (m＞10)
{ printf("lnGive the number of the
students who have better score: ");
scanf ("%d", %m);
pOrder=fun (a,m);
printf("***** THE RESULT*****kn");
printf("The top :\n");
for (i=0; i＜m; i++)
printf("%s %d\n",pOrder[i].num,
p0rder [i]. s);
free (pOrder);
}