#include<stdio.h>
#include<math.h>
#define wap(x,y,t) ((t)=(x),(x)=(y),(y)=(t))
#define max 12
void sort(int a[],int x);
main()
{
int a[max],i,j;
clrscr();
printf("how many elems do you want to compare?number(<=12):\n");
scanf("%d",&i);
while(i>12||i<=0)
{
printf("error due to the wrong input,please input it again!\n");
scanf("%d",&i);
}
printf("\nplease enter the numbers:\n");
for(j=0;j<i;j++)
{
fflush(stdin);
  scanf("%d",&a[j]);
  }
printf("\nthe original numbers is:\n");
for(j=0;j<i;j++)
{
printf("%d",a[j]);
printf("/t/t");
}
printf("/n");
sort(a,i);
}
void sort(int a[],int x)
{
int i,j,maxsu,k,m,temp;
for(i=0;i<(x-1);i++)
{
  maxsu=a[i];
  for(j=i;j<x;j++)
  {
    if(a[j]<maxsu)
     {
     maxsu=a[j];
     k=j;
    }
}
wap(a[i],a[k],temp);
}
printf("the sort number is:\n");
for(m=0;m<x;m++)
{
printf("%d",a[m]);
printf("/t/t");
}
}

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