#include<stdio.h>
int Read(int score[]);
void ChangeSort(int score[],int n);//冒泡法排序
void Print(int score[],int n);
#define N 40
int main(void)
{
int score[N],n;
n=Read(score);
printf("The number of the students is %d\n",n);
ChangeSort(score,n);
Print(score,n);
return 0;
}
int Read(int score[])
{
int i=-1;
do
{
i++;
printf("Input scores:");
scanf("%d",&score[i]);
}while(score[i]>=0);
return i;
}
void ChangeSort(int score[],int n) //降序排列 从高到低
{
int i,j,temp;
for(i=0;i<n-1;i++)
{
for(j=i+1;j<n;j++)
{
if(score[j]>score[i])
{
temp=score[j];
score[j]=score[i];
score[i]=temp;
}
}
}
}
void Print(int score[],int n)
{
int i;
for(i=0;i<n;i++)
{
printf("%d,",score[i]);
}
}