#include <stdio.h>
void sort(double arr[],int n);
double average(double arr[], int n);
main()
{ int n;
double arr[]={0};
printf("Please enter at least 3 and up to 30 positive values\n");
printf("*You have to enter the number of the values first before you enter the value.*\n");
printf("The number of the value is :");
scanf("%d",&n);
if(n>=3)
printf("Please enter the values:");
else
{
printf("You have to enter at least 3 values. Thank you!\n");
printf("The number of the value is :");
scanf("%d",&n);
printf("Please enter the values:");
}
sort(arr,n);
getch();
}
void sort(double arr[],int n)
{ int j,i,t;
if(n>=3)
for(i=0;i<n;i++)
scanf("%lf",&arr[i]);
for(j=0;j<n-1;j++)
for(i=0;i<n-j;i++)
if(arr[i]<arr[i+1])
{
t=arr[i];
arr[i]=arr[i+1];
arr[i+1]=t;
}
printf("the sorted values:\n");
for(i=0;i<n;i++)
printf("%.1lf",arr[i]);
}
另外利用double average(double arr[],int n)找出平均值呢?最大值呢?