C语言求中位数

#include <stdio.h>

void swap(int *p,int *q) {
   int t;

   t=*p; 
   *p=*q; 
   *q=t;
}

void sort(int a[],int n) { 
   int i,j,temp;

   for(i = 0;i < n-1;i++) {
      for(j = 0;j < n-i-1;j++) {
         if(a[j] > a[j+1])
            swap(&a[j],&a[j+1]);
      }
   }
}

int main() {
   int a[] = {6,3,8,5,1};
   int n = 5;
   int sum,i;

   sort(a,n);

   n = (n+1) / 2 - 1;      // -1 as array indexing in C starts from 0

   printf("Median = %d ", a[n]);

   return 0;
}