●试题四下列给定程序中,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m(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。注意:部分源程序给出如下。请勿改动主函数main和其他函数中的任何内容,仅在函数fun()的横线上填入所编写的若干表达式或语句。试题程序:#includestdio.h#includemalloC.h#includestring.h#includeconio.h#define N 10typedef struct ss{char num[10];int order;}STU;STU *fun(STU a[], int m){STU b[N],*tt;int i,j,k;(1) ;for(i=0; iN; i++)b[i]=a[i];for (k=0;km;k++){for(i=j=0;iN;i++)if ( (2) )j=i;tt[k]=b[j];b[j].order=0;}return (3) ;}outresult(STU a[],FILE *pf){int i;for(i=0;iN; i++)fprintf(pf,"No=%s Mark=%d\n",a[i].num,a[i].order);fprintf(pf,"\n\n");}main(){STU [N]={{"A01",80},{"A02",79},{"A03",66},{"A04",82},{"A05",87},{"A06",93},{"A07",78},{"A08",60},{"A09",85},{"A10",73}};STU *p_order;int i,m;clrscr();printf("*** The Origial data ***\n");outresult(a, stdout);printf("\nGive the numeber of thestudents who have better score:");scanf("%d",m);while (m10){printf("\nGive the number of thestudets who have better score:");scanf("%d",m);}p_order=fun(a,m);printf("*** THE RESULT ***\n");printf("*** The top students ***\n");for(i=0; im; i++)printf(" %s %d\n",p_order[i].num,p_order[i].order);free(p_order);}
●试题四
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m(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。
注意:部分源程序给出如下。
请勿改动主函数main和其他函数中的任何内容,仅在函数fun()的横线上填入所编写的若干表达式或语句。
试题程序:
#include<stdio.h>
#include<mallo
C.h>
#include<string.h>
#include<conio.h>
#define N 10
typedef struct ss
{
char num[10];
int order;
}STU;
STU *fun(STU a[], int m)
{
STU b[N],*tt;
int i,j,k;
(1) ;
for(i=0; i<N; i++)
b[i]=a[i];
for (k=0;k<m;k++)
{
for(i=j=0;i<N;i++)
if ( (2) )
j=i;
tt[k]=b[j];
b[j].order=0;
}
return (3) ;
}
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].order);
fprintf(pf,"\n\n");
}
main()
{
STU [N]={{"A01",80},{"A02",79},
{"A03",66},{"A04",82},{"A05",87},
{"A06",93},{"A07",78},{"A08",60},
{"A09",85},{"A10",73}};
STU *p_order;
int i,m;
clrscr();
printf("*** The Origial data ***\n");
outresult(a, stdout);
printf("\nGive the numeber of the
students who have better score:");
scanf("%d",&m);
while (m>10)
{
printf("\nGive the number of the
studets who have better score:");
scanf("%d",&m);
}
p_order=fun(a,m);
printf("*** THE RESULT ***\n");
printf("*** The top students ***\n");
for(i=0; i<m; i++)
printf(" %s %d\n",
p_order[i].num,p_order[i].order);
free(p_order);
}