有10个学生，每个学生的数据包括学号、姓名、三门课的成绩，从键盘输入10个学生数据，要求打印出3门课的总

Question

要求用C语言求解

Answer 1

#include "stdio.h"
#include <stdlib.h>
#define SIZE 10

struct student{
char id[20];
char name[20];
int score[3];
int total;
} stud[SIZE];

void main()
{
int i,j;
struct student temp;
for(i=0;i<SIZE;i++)
{
printf("第%d个学生的信息:\n",i+1);
scanf("%s%s%d%d%d",stud[i].id,stud[i].name,&stud[i].score[0],&stud[i].score[1],&stud[i].score[2]);
stud[i].total=stud[i].score[0]+stud[i].score[1]+stud[i].score[2];
}
for(i=0;i<SIZE;i++)
{
for(j=0;j<SIZE-i-1;j++)
{
if(stud[j].total<stud[j+1].total)
{
temp=stud[j];
stud[j]=stud[j+1];
stud[j+1]=temp;
}
}
}
printf("\n");
for(i=0;i<SIZE;i++)
printf("%s %s %d %d %d %d\n",stud[i].id,stud[i].name,stud[i].score[0],stud[i].score[1],stud[i].score[2],stud[i].total);
}

Answer 2

# include<stdio.h>
# define N 10
struct student
{
int num;
char name[20];
float score[3];
float total;
float aver;
} ;

void main()
{ void input(struct student s[]);
void sort(struct student s[]);
void print(struct student s[]);
struct student stu[N],* p=stu;
input(p);
sort(p);
print(p);
}

void input(struct student s[])
{ int i;
printf("please enter num,name and 3 scores:\n");
for(i=0;i<N;i++)
{
scanf("%d %s %f %f %f",&s[i].num,s[i].name,&s[i].score[0],&s[i].score[1],&s[i].score[2]);
s[i].total=s[i].score[0]+s[i].score[1]+s[i].score[2];
s[i].aver=s[i].total/3.0;
}
}

void sort(struct student s[])
{
struct student t;
int i,j,k;
for(i=0;i<N-1;i++)
{k=i;
for(j=i+1;j<N;j++)
if(s[j].aver>s[k].aver) k=j;
t=s[k];s[k]=s[i];s[i]=t;
}
}

void print(struct student s[])
{ int i;
printf("the sorted result is:\n");
printf(" num name score1 score2 score3 total aver\n");
for(i=0;i<N;i++)
printf("%5d %-9s %-6.1f %-6.1f %-6.1f %-6.1f %-6.1f\n",s[i].num,s[i].name,s[i].score[0],s[i].score[1],s[i].score[2],s[i].total,s[i].aver);
}