C++ 数组 求最大数并和最后一个数交换和最小数并和第一个数交换

#include <iostream>
using namespace std;
int main(int argc, char **argv) {
  void max_min_value(int n[],int size);
  int a[10] = {9,6, 3, 8, 5, 1, 7, 10, 4, 2};

  max_min_value(a,10);
  for (int i = 0; i < 10; i++) {
    cout<<a[i]<<"  ";
  }
}

void max_min_value(int n[],int size) {
  int min,max,min_index,max_index;
  for (int i = 0; i < size; i++) {
    if(n[i]<min){
      min=n[i];min_index=i;
    }
  }
  n[min_index]=n[0];
  n[0]=min;
  int temp = n[9];
  for (int i = 0; i < size; i++) {
    cout<<n[i]<<"  ";
    int ind;
    if(n[i]>max){
      max=n[i];
      ind=max_index=i;
    }
  }
  n[max_index]=temp;
  n[9]=max;
  cout<<endl;
}